55!53-1 trivially factors prime!: 109 (digits:3)
 56!53-1 trivially factors prime!: 167 (digits:3)
 57!53-1 trivially factors prime!: 227 (digits:3)
 59!53-1 trivially factors prime!: 353 (digits:3)
 60!53-1 trivially factors prime!: 419 (digits:3)
 61!53-1 trivially factors prime!: 487 (digits:3)
 62!53-1 trivially factors prime!: 557 (digits:3)
 66!53-1 trivially factors prime!: 857 (digits:3)
 67!53-1 trivially factors prime!: 937 (digits:3)
 68!53-1 trivially factors prime!: 1019 (digits:4)
 69!53-1 trivially factors prime!: 1103 (digits:4)
 71!53-1 trivially factors prime!: 1277 (digits:4)
 72!53-1 trivially factors prime!: 1367 (digits:4)
 73!53-1 trivially factors prime!: 1459 (digits:4)
 74!53-1 trivially factors prime!: 1553 (digits:4)
 76!53-1 trivially factors prime!: 1747 (digits:4)
 77!53-1 trivially factors prime!: 1847 (digits:4)
 78!53-1 trivially factors prime!: 1949 (digits:4)
 79!53-1 trivially factors prime!: 2053 (digits:4)
 81!53-1 trivially factors prime!: 2267 (digits:4)
 82!53-1 trivially factors prime!: 2377 (digits:4)
 85!53-1 trivially factors prime!: 2719 (digits:4)
 86!53-1 trivially factors prime!: 2837 (digits:4)
 87!53-1 trivially factors prime!: 2957 (digits:4)
 88!53-1 trivially factors prime!: 3079 (digits:4)
 89!53-1 trivially factors prime!: 3203 (digits:4)
 90!53-1 trivially factors prime!: 3329 (digits:4)
 91!53-1 trivially factors prime!: 3457 (digits:4)
 93!53-1 trivially factors prime!: 3719 (digits:4)
 94!53-1 trivially factors prime!: 3853 (digits:4)
 95!53-1 trivially factors prime!: 3989 (digits:4)
 96!53-1 trivially factors prime!: 4127 (digits:4)
 98!53-1 trivially factors prime!: 4409 (digits:4)
 104!53-1 trivially factors prime!: 5303 (digits:4)
 109!53-1 trivially factors prime!: 18311 (digits:5)
 111!53-1 trivially factors prime!: 32189 (digits:5)
 113!53-1 trivially factors prime!: 47459 (digits:5)
 114!53-1 trivially factors prime!: 55631 (digits:5)
 116!53-1 trivially factors prime!: 73079 (digits:5)
 119!53-1 trivially factors prime!: 102101 (digits:6)
 120!53-1 trivially factors prime!: 112559 (digits:6)
 121!53-1 trivially factors prime!: 123419 (digits:6)
 123!53-1 trivially factors prime!: 146369 (digits:6)
 126!53-1 trivially factors prime!: 183959 (digits:6)
 128!53-1 trivially factors prime!: 211199 (digits:6)
 132!53-1 trivially factors prime!: 271127 (digits:6)
 133!53-1 trivially factors prime!: 287279 (digits:6)
 138!53-1 trivially factors prime!: 375359 (digits:6)
 139!53-1 trivially factors prime!: 394481 (digits:6)
 142!53-1 trivially factors prime!: 454967 (digits:6)
 147!53-1 trivially factors prime!: 566537 (digits:6)
 156!53-1 trivially factors prime!: 803399 (digits:6)
 159!53-1 trivially factors prime!: 893261 (digits:6)
 161!53-1 trivially factors prime!: 1912679 (digits:7)
 163!53-1 trivially factors prime!: 4088039 (digits:7)
 166!53-1 trivially factors prime!: 7878359 (digits:7)
 167!53-1 trivially factors prime!: 9290543 (digits:7)
 168!53-1 trivially factors prime!: 10780559 (digits:8)
 171!53-1 trivially factors prime!: 15738839 (digits:8)
 172!53-1 trivially factors prime!: 17561543 (digits:8)
 174!53-1 trivially factors prime!: 21475079 (digits:8)
 177!53-1 trivially factors prime!: 28049543 (digits:8)
 184!53-1 trivially factors prime!: 47002799 (digits:8)
 187!53-1 trivially factors prime!: 56831543 (digits:8)
 190!53-1 trivially factors prime!: 67782119 (digits:8)
 191!53-1 trivially factors prime!: 71693759 (digits:8)
 193!53-1 trivially factors prime!: 79925159 (digits:8)
 201!53-1 trivially factors prime!: 118694519 (digits:9)
 202!53-1 trivially factors prime!: 124244543 (digits:9)
 203!53-1 trivially factors prime!: 129960599 (digits:9)
 204!53-1 trivially factors prime!: 135845639 (digits:9)
 208!53-1 trivially factors prime!: 161135519 (digits:9)
 210!53-1 trivially factors prime!: 174872879 (digits:9)
 212!53-1 trivially factors prime!: 189371543 (digits:9)
 227!53-1 trivially factors prime!: 4874843159 (digits:10)
 231!53-1 trivially factors prime!: 7031177999 (digits:10)
 232!53-1 trivially factors prime!: 7639490879 (digits:10)
 
 Primality testing 240!53-1 [N-1, Brillhart-Lehmer-Selfridge]
 small number, factored prime!
 240!53-1 is prime! (0.0158s+0.0008s) (digits:11)
 
 Primality testing 242!53-1 [N-1, Brillhart-Lehmer-Selfridge]
 small number, factored prime!
 242!53-1 is prime! (0.0140s+0.0008s) (digits:11)
 
 Primality testing 252!53-1 [N-1, Brillhart-Lehmer-Selfridge]
 small number, factored prime!
 252!53-1 is prime! (0.0166s+0.0021s) (digits:11)
 
 Primality testing 257!53-1 [N-1, Brillhart-Lehmer-Selfridge]
 small number, factored prime!
 257!53-1 is prime! (0.0174s+0.0014s) (digits:11)
 
 Primality testing 262!53-1 [N-1, Brillhart-Lehmer-Selfridge]
 small number, factored prime!
 262!53-1 is prime! (0.0161s+0.0007s) (digits:11)
 
 Primality testing 267!53-1 [N-1, Brillhart-Lehmer-Selfridge]
 small number, factored prime!
 267!53-1 is prime! (0.0159s+0.0008s) (digits:12)
 
 Primality testing 269!53-1 [N-1, Brillhart-Lehmer-Selfridge]
 small number, factored prime!
 269!53-1 is prime! (0.0169s+0.0009s) (digits:12)
 
 Primality testing 273!53-1 [N-1, Brillhart-Lehmer-Selfridge]
 small number, factored prime!
 273!53-1 is prime! (0.0160s+0.0007s) (digits:12)
 
 Primality testing 278!53-1 [N-1, Brillhart-Lehmer-Selfridge]
 small number, factored prime!
 278!53-1 is prime! (0.0177s+0.0008s) (digits:13)
 
 Primality testing 284!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 13
 Running N+1 test using discriminant 23, base 1+sqrt(23)
 Running N+1 test using discriminant 23, base 2+sqrt(23)
 Calling N+1 BLS with factored part 100.00% and helper 2.50% (307.50% proof)
 284!53-1 is prime! (0.0481s+0.0060s) (digits:13)
 
 Primality testing 292!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 11
 Running N+1 test using discriminant 23, base 2+sqrt(23)
 Running N+1 test using discriminant 23, base 3+sqrt(23)
 Calling N+1 BLS with factored part 100.00% and helper 2.44% (307.32% proof)
 292!53-1 is prime! (0.0172s+0.0107s) (digits:13)
 
 Primality testing 300!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 17
 Running N+1 test using discriminant 37, base 1+sqrt(37)
 Running N+1 test using discriminant 37, base 2+sqrt(37)
 Calling N+1 BLS with factored part 100.00% and helper 2.38% (304.76% proof)
 300!53-1 is prime! (0.0552s+0.0021s) (digits:13)
 
 Primality testing 302!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 41
 Running N+1 test using discriminant 53, base 1+sqrt(53)
 Running N+1 test using discriminant 53, base 2+sqrt(53)
 Calling N+1 BLS with factored part 100.00% and helper 11.90% (316.67% proof)
 302!53-1 is prime! (0.0472s+0.0012s) (digits:13)
 
 Primality testing 315!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 17
 Running N+1 test using discriminant 23, base 1+sqrt(23)
 Running N+1 test using discriminant 23, base 2+sqrt(23)
 Calling N+1 BLS with factored part 100.00% and helper 20.93% (325.58% proof)
 315!53-1 is prime! (0.0081s+0.0015s) (digits:14)
 
 Primality testing 320!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 13
 Running N+1 test using discriminant 37, base 1+sqrt(37)
 Running N+1 test using discriminant 37, base 2+sqrt(37)
 Calling N+1 BLS with factored part 100.00% and helper 2.27% (306.82% proof)
 320!53-1 is prime! (0.0083s+0.0010s) (digits:14)
 
 Primality testing 332!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 13
 Running N+1 test using discriminant 23, base 1+sqrt(23)
 Running N+1 test using discriminant 23, base 2+sqrt(23)
 Calling N+1 BLS with factored part 100.00% and helper 12.50% (316.67% proof)
 332!53-1 is prime! (0.0106s+0.0038s) (digits:15)
 
 Primality testing 336!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 13
 Running N+1 test using discriminant 19, base 1+sqrt(19)
 Running N+1 test using discriminant 19, base 2+sqrt(19)
 Calling N+1 BLS with factored part 100.00% and helper 10.20% (310.20% proof)
 336!53-1 is prime! (0.0392s+0.0016s) (digits:15)
 
 Primality testing 340!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 19
 Running N+1 test using discriminant 31, base 1+sqrt(31)
 Running N+1 test using discriminant 31, base 2+sqrt(31)
 Calling N+1 BLS with factored part 100.00% and helper 16.33% (318.37% proof)
 340!53-1 is prime! (0.0084s+0.0050s) (digits:15)
 
 Primality testing 342!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 67, base 1+sqrt(67)
 Running N+1 test using discriminant 67, base 2+sqrt(67)
 Calling N+1 BLS with factored part 100.00% and helper 2.04% (306.12% proof)
 342!53-1 is prime! (0.0088s+0.0010s) (digits:16)
 
 Primality testing 345!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 11
 Running N+1 test using discriminant 17, base 1+sqrt(17)
 Running N+1 test using discriminant 17, base 3+sqrt(17)
 Calling N+1 BLS with factored part 100.00% and helper 22.00% (322.00% proof)
 345!53-1 is prime! (0.0082s+0.0011s) (digits:16)
 
 Primality testing 346!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 13
 Running N+1 test using discriminant 29, base 1+sqrt(29)
 Running N+1 test using discriminant 29, base 2+sqrt(29)
 Calling N+1 BLS with factored part 100.00% and helper 2.00% (302.00% proof)
 346!53-1 is prime! (0.0076s+0.0010s) (digits:16)
 
 Primality testing 350!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 19
 Running N+1 test using discriminant 43, base 1+sqrt(43)
 Running N+1 test using discriminant 43, base 2+sqrt(43)
 Calling N+1 BLS with factored part 100.00% and helper 12.00% (316.00% proof)
 350!53-1 is prime! (0.0083s+0.0013s) (digits:16)
 
 Primality testing 383!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 29
 Running N+1 test using discriminant 43, base 1+sqrt(43)
 Running N+1 test using discriminant 43, base 2+sqrt(43)
 Calling N+1 BLS with factored part 100.00% and helper 21.43% (325.00% proof)
 383!53-1 is prime! (0.0084s+0.0010s) (digits:18)
 
 Primality testing 385!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 13
 Running N+1 test using discriminant 19, base 1+sqrt(19)
 Running N+1 test using discriminant 19, base 2+sqrt(19)
 Calling N+1 BLS with factored part 100.00% and helper 14.04% (314.04% proof)
 385!53-1 is prime! (0.0087s+0.0012s) (digits:18)
 
 Primality testing 388!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 31
 Running N+1 test using discriminant 43, base 1+sqrt(43)
 Running N+1 test using discriminant 43, base 2+sqrt(43)
 Calling N+1 BLS with factored part 100.00% and helper 17.54% (321.05% proof)
 388!53-1 is prime! (0.0081s+0.0009s) (digits:18)
 
 Primality testing 413!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 11
 Running N+1 test using discriminant 31, base 1+sqrt(31)
 Running N+1 test using discriminant 31, base 2+sqrt(31)
 Calling N+1 BLS with factored part 100.00% and helper 1.67% (301.67% proof)
 413!53-1 is prime! (0.0078s+0.0010s) (digits:19)
 
 Primality testing 422!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 19
 Running N+1 test using discriminant 31, base 1+sqrt(31)
 Running N+1 test using discriminant 31, base 2+sqrt(31)
 Calling N+1 BLS with factored part 100.00% and helper 23.33% (328.33% proof)
 422!53-1 is prime! (0.0109s+0.0012s) (digits:19)
 
 Primality testing 431!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 11
 Running N+1 test using discriminant 19, base 1+sqrt(19)
 Running N+1 test using discriminant 19, base 2+sqrt(19)
 Calling N+1 BLS with factored part 100.00% and helper 17.19% (318.75% proof)
 431!53-1 is prime! (0.0078s+0.0011s) (digits:20)
 
 Primality testing 463!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 31
 Running N+1 test using discriminant 47, base 1+sqrt(47)
 Running N+1 test using discriminant 47, base 2+sqrt(47)
 Calling N+1 BLS with factored part 100.00% and helper 14.71% (319.12% proof)
 463!53-1 is prime! (0.0088s+0.0009s) (digits:21)
 
 Primality testing 472!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 17
 Running N+1 test using discriminant 31, base 1+sqrt(31)
 Running N+1 test using discriminant 31, base 2+sqrt(31)
 Calling N+1 BLS with factored part 100.00% and helper 1.45% (302.90% proof)
 472!53-1 is prime! (0.0079s+0.0010s) (digits:21)
 
 Primality testing 473!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 19
 Running N+1 test using discriminant 47, base 2+sqrt(47)
 Running N+1 test using discriminant 47, base 4+sqrt(47)
 Calling N+1 BLS with factored part 100.00% and helper 14.49% (317.39% proof)
 473!53-1 is prime! (0.0085s+0.0013s) (digits:21)
 
 Primality testing 475!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 11
 Running N+1 test using discriminant 23, base 2+sqrt(23)
 Running N+1 test using discriminant 23, base 3+sqrt(23)
 Calling N+1 BLS with factored part 100.00% and helper 1.45% (304.35% proof)
 475!53-1 is prime! (0.0087s+0.0011s) (digits:22)
 
 Primality testing 509!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 29
 Running N+1 test using discriminant 41, base 1+sqrt(41)
 Running N+1 test using discriminant 41, base 2+sqrt(41)
 Calling N+1 BLS with factored part 100.00% and helper 1.30% (301.30% proof)
 509!53-1 is prime! (0.0089s+0.0011s) (digits:24)
 
 Primality testing 542!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 31
 Running N+1 test using discriminant 41, base 1+sqrt(41)
 Running N+1 test using discriminant 41, base 2+sqrt(41)
 Calling N+1 BLS with factored part 100.00% and helper 7.23% (309.64% proof)
 542!53-1 is prime! (0.0117s+0.0011s) (digits:26)
 
 Primality testing 543!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 29
 Running N+1 test using discriminant 59, base 2+sqrt(59)
 Running N+1 test using discriminant 59, base 3+sqrt(59)
 Calling N+1 BLS with factored part 100.00% and helper 7.23% (309.64% proof)
 543!53-1 is prime! (0.0106s+0.0012s) (digits:26)
 
 Primality testing 558!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 13
 Running N+1 test using discriminant 23, base 1+sqrt(23)
 Running N+1 test using discriminant 23, base 2+sqrt(23)
 Calling N+1 BLS with factored part 100.00% and helper 1.18% (303.53% proof)
 558!53-1 is prime! (0.0093s+0.0011s) (digits:26)
 
 Primality testing 563!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 29
 Running N+1 test using discriminant 37, base 1+sqrt(37)
 Running N+1 test using discriminant 37, base 2+sqrt(37)
 Calling N+1 BLS with factored part 100.00% and helper 1.16% (302.33% proof)
 563!53-1 is prime! (0.0088s+0.0026s) (digits:27)
 
 Primality testing 567!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 19
 Running N+1 test using discriminant 29, base 1+sqrt(29)
 Running N+1 test using discriminant 29, base 2+sqrt(29)
 Calling N+1 BLS with factored part 100.00% and helper 5.81% (308.14% proof)
 567!53-1 is prime! (0.0086s+0.0013s) (digits:27)
 
 Primality testing 572!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 23
 Running N+1 test using discriminant 31, base 1+sqrt(31)
 Running N+1 test using discriminant 31, base 2+sqrt(31)
 Calling N+1 BLS with factored part 100.00% and helper 5.75% (306.90% proof)
 572!53-1 is prime! (0.0072s+0.0010s) (digits:27)
 
 Primality testing 577!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 23
 Running N+1 test using discriminant 41, base 1+sqrt(41)
 Running N+1 test using discriminant 41, base 2+sqrt(41)
 Calling N+1 BLS with factored part 100.00% and helper 1.15% (303.45% proof)
 577!53-1 is prime! (0.0092s+0.0011s) (digits:27)
 
 Primality testing 579!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 41
 Running N+1 test using discriminant 61, base 1+sqrt(61)
 Running N+1 test using discriminant 61, base 2+sqrt(61)
 Calling N+1 BLS with factored part 100.00% and helper 1.15% (303.45% proof)
 579!53-1 is prime! (0.0084s+0.0012s) (digits:27)
 
 Primality testing 580!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 61, base 1+sqrt(61)
 Running N+1 test using discriminant 61, base 2+sqrt(61)
 Calling N+1 BLS with factored part 100.00% and helper 15.91% (315.91% proof)
 580!53-1 is prime! (0.0097s+0.0010s) (digits:27)
 
 Primality testing 588!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 43
 Running N+1 test using discriminant 73, base 1+sqrt(73)
 Running N+1 test using discriminant 73, base 2+sqrt(73)
 Calling N+1 BLS with factored part 100.00% and helper 23.33% (326.67% proof)
 588!53-1 is prime! (0.0087s+0.0010s) (digits:28)
 
 Primality testing 599!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 59
 Running N+1 test using discriminant 67, base 1+sqrt(67)
 Running N+1 test using discriminant 67, base 2+sqrt(67)
 Calling N+1 BLS with factored part 100.00% and helper 7.53% (309.68% proof)
 599!53-1 is prime! (0.0080s+0.0010s) (digits:29)
 
 Primality testing 620!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 19
 Running N+1 test using discriminant 29, base 1+sqrt(29)
 Running N+1 test using discriminant 29, base 2+sqrt(29)
 Calling N+1 BLS with factored part 100.00% and helper 1.04% (301.04% proof)
 620!53-1 is prime! (0.0086s+0.0011s) (digits:29)
 
 Primality testing 624!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 19
 Running N+1 test using discriminant 29, base 1+sqrt(29)
 Running N+1 test using discriminant 29, base 2+sqrt(29)
 Calling N+1 BLS with factored part 100.00% and helper 1.04% (302.08% proof)
 624!53-1 is prime! (0.0081s+0.0010s) (digits:30)
 
 Primality testing 626!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 29
 Running N+1 test using discriminant 37, base 1+sqrt(37)
 Running N+1 test using discriminant 37, base 2+sqrt(37)
 Calling N+1 BLS with factored part 100.00% and helper 17.71% (319.79% proof)
 626!53-1 is prime! (0.0084s+0.0010s) (digits:30)
 
 Primality testing 630!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 29
 Running N+1 test using discriminant 59, base 2+sqrt(59)
 Running N+1 test using discriminant 59, base 3+sqrt(59)
 Calling N+1 BLS with factored part 100.00% and helper 7.22% (307.22% proof)
 630!53-1 is prime! (0.0083s+0.0010s) (digits:30)
 
 Primality testing 645!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 29
 Running N+1 test using discriminant 47, base 1+sqrt(47)
 Running N+1 test using discriminant 47, base 2+sqrt(47)
 Calling N+1 BLS with factored part 100.00% and helper 0.99% (301.98% proof)
 645!53-1 is prime! (0.0086s+0.0010s) (digits:31)
 
 Primality testing 648!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 23
 Running N+1 test using discriminant 31, base 1+sqrt(31)
 Running N+1 test using discriminant 31, base 2+sqrt(31)
 Calling N+1 BLS with factored part 100.00% and helper 24.51% (324.51% proof)
 648!53-1 is prime! (0.0090s+0.0010s) (digits:31)
 
 Primality testing 658!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 29
 Running N+1 test using discriminant 53, base 1+sqrt(53)
 Running N+1 test using discriminant 53, base 2+sqrt(53)
 Calling N+1 BLS with factored part 100.00% and helper 0.97% (302.91% proof)
 658!53-1 is prime! (0.0364s+0.0012s) (digits:32)
 
 Primality testing 665!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 37
 Running N+1 test using discriminant 53, base 1+sqrt(53)
 Running N+1 test using discriminant 53, base 2+sqrt(53)
 Calling N+1 BLS with factored part 100.00% and helper 0.96% (301.92% proof)
 665!53-1 is prime! (0.0097s+0.0014s) (digits:32)
 
 Primality testing 679!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 29
 Running N+1 test using discriminant 37, base 1+sqrt(37)
 Running N+1 test using discriminant 37, base 2+sqrt(37)
 Calling N+1 BLS with factored part 100.00% and helper 16.98% (316.98% proof)
 679!53-1 is prime! (0.0091s+0.0011s) (digits:32)
 
 Primality testing 693!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 17
 Running N+1 test using discriminant 41, base 1+sqrt(41)
 Running N+1 test using discriminant 41, base 2+sqrt(41)
 Calling N+1 BLS with factored part 100.00% and helper 0.92% (301.83% proof)
 693!53-1 is prime! (0.0097s+0.0013s) (digits:33)
 
 Primality testing 701!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 29
 Running N+1 test using discriminant 37, base 1+sqrt(37)
 Running N+1 test using discriminant 37, base 2+sqrt(37)
 Calling N+1 BLS with factored part 100.00% and helper 0.90% (301.80% proof)
 701!53-1 is prime! (0.0147s+0.0016s) (digits:34)
 
 Primality testing 710!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 17
 Running N+1 test using discriminant 23, base 1+sqrt(23)
 Running N+1 test using discriminant 23, base 2+sqrt(23)
 Calling N+1 BLS with factored part 100.00% and helper 6.19% (306.19% proof)
 710!53-1 is prime! (0.0355s+0.0028s) (digits:35)
 
 Primality testing 715!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 19
 Running N+1 test using discriminant 47, base 2+sqrt(47)
 Running N+1 test using discriminant 47, base 4+sqrt(47)
 Calling N+1 BLS with factored part 100.00% and helper 9.73% (311.50% proof)
 715!53-1 is prime! (0.0461s+0.0033s) (digits:35)
 
 Primality testing 730!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 19
 Running N+1 test using discriminant 29, base 1+sqrt(29)
 Running N+1 test using discriminant 29, base 2+sqrt(29)
 Calling N+1 BLS with factored part 100.00% and helper 0.87% (301.74% proof)
 730!53-1 is prime! (0.0421s+0.0085s) (digits:35)
 
 Primality testing 750!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 29
 Running N+1 test using discriminant 43, base 1+sqrt(43)
 Running N+1 test using discriminant 43, base 2+sqrt(43)
 Calling N+1 BLS with factored part 100.00% and helper 5.83% (306.67% proof)
 750!53-1 is prime! (0.0371s+0.0016s) (digits:37)
 
 Primality testing 766!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 29
 Running N+1 test using discriminant 37, base 1+sqrt(37)
 Running N+1 test using discriminant 37, base 2+sqrt(37)
 Calling N+1 BLS with factored part 100.00% and helper 0.81% (300.81% proof)
 766!53-1 is prime! (0.0422s+0.0084s) (digits:38)
 
 Primality testing 778!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 47
 Running N+1 test using discriminant 67, base 1+sqrt(67)
 Running N+1 test using discriminant 67, base 2+sqrt(67)
 Calling N+1 BLS with factored part 100.00% and helper 17.74% (319.35% proof)
 778!53-1 is prime! (0.0370s+0.0093s) (digits:38)
 
 Primality testing 783!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 19
 Running N+1 test using discriminant 53, base 1+sqrt(53)
 Running N+1 test using discriminant 53, base 2+sqrt(53)
 Calling N+1 BLS with factored part 100.00% and helper 0.80% (300.80% proof)
 783!53-1 is prime! (0.0433s+0.0117s) (digits:38)
 
 Primality testing 820!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 43
 Running N+1 test using discriminant 67, base 1+sqrt(67)
 Running N+1 test using discriminant 67, base 2+sqrt(67)
 Calling N+1 BLS with factored part 100.00% and helper 0.76% (302.27% proof)
 820!53-1 is prime! (0.0687s+0.0106s) (digits:40)
 
 Primality testing 831!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 47
 Running N+1 test using discriminant 67, base 1+sqrt(67)
 Running N+1 test using discriminant 67, base 2+sqrt(67)
 Calling N+1 BLS with factored part 100.00% and helper 0.75% (300.75% proof)
 831!53-1 is prime! (0.0517s+0.0104s) (digits:41)
 
 Primality testing 834!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 37
 Running N+1 test using discriminant 53, base 1+sqrt(53)
 Running N+1 test using discriminant 53, base 2+sqrt(53)
 Calling N+1 BLS with factored part 100.00% and helper 5.97% (307.46% proof)
 834!53-1 is prime! (0.0534s+0.0033s) (digits:41)
 
 Primality testing 857!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 29
 Running N+1 test using discriminant 41, base 1+sqrt(41)
 Running N+1 test using discriminant 41, base 2+sqrt(41)
 Calling N+1 BLS with factored part 100.00% and helper 4.32% (306.47% proof)
 857!53-1 is prime! (0.0517s+0.0104s) (digits:43)
 
 Primality testing 879!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 43
 Running N+1 test using discriminant 61, base 1+sqrt(61)
 Running N+1 test using discriminant 61, base 2+sqrt(61)
 Calling N+1 BLS with factored part 100.00% and helper 10.49% (311.19% proof)
 879!53-1 is prime! (0.0556s+0.0170s) (digits:44)
 
 Primality testing 900!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 29
 Running N+1 test using discriminant 53, base 1+sqrt(53)
 Running N+1 test using discriminant 53, base 2+sqrt(53)
 Calling N+1 BLS with factored part 100.00% and helper 5.52% (306.90% proof)
 900!53-1 is prime! (0.0550s+0.0171s) (digits:44)
 
 Primality testing 903!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 37
 Running N+1 test using discriminant 53, base 1+sqrt(53)
 Running N+1 test using discriminant 53, base 2+sqrt(53)
 Calling N+1 BLS with factored part 100.00% and helper 0.68% (302.05% proof)
 903!53-1 is prime! (0.0581s+0.0105s) (digits:45)
 
 Primality testing 939!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 37
 Running N+1 test using discriminant 43, base 1+sqrt(43)
 Running N+1 test using discriminant 43, base 2+sqrt(43)
 Calling N+1 BLS with factored part 100.00% and helper 0.65% (300.65% proof)
 939!53-1 is prime! (0.0550s+0.0170s) (digits:47)
 
 Primality testing 945!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 23
 Running N+1 test using discriminant 37, base 1+sqrt(37)
 Running N+1 test using discriminant 37, base 2+sqrt(37)
 Calling N+1 BLS with factored part 100.00% and helper 3.90% (305.84% proof)
 945!53-1 is prime! (0.0550s+0.0171s) (digits:47)
 
 Primality testing 993!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 31
 Running N+1 test using discriminant 53, base 1+sqrt(53)
 Running N+1 test using discriminant 53, base 2+sqrt(53)
 Calling N+1 BLS with factored part 100.00% and helper 0.61% (300.61% proof)
 993!53-1 is prime! (0.0575s+0.0168s) (digits:50)
 
 Primality testing 1024!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 31
 Running N+1 test using discriminant 43, base 1+sqrt(43)
 Running N+1 test using discriminant 43, base 2+sqrt(43)
 Calling N+1 BLS with factored part 100.00% and helper 5.85% (305.85% proof)
 1024!53-1 is prime! (0.0639s+0.0097s) (digits:52)
 
 Primality testing 1062!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 37
 Running N+1 test using discriminant 47, base 1+sqrt(47)
 Running N+1 test using discriminant 47, base 2+sqrt(47)
 Calling N+1 BLS with factored part 100.00% and helper 0.57% (301.70% proof)
 1062!53-1 is prime! (0.0579s+0.0167s) (digits:54)
 
 Primality testing 1082!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 37
 Running N+1 test using discriminant 73, base 1+sqrt(73)
 Running N+1 test using discriminant 73, base 2+sqrt(73)
 Calling N+1 BLS with factored part 100.00% and helper 0.55% (300.55% proof)
 1082!53-1 is prime! (0.0575s+0.0060s) (digits:55)
 
 Primality testing 1104!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 31
 Running N+1 test using discriminant 43, base 1+sqrt(43)
 Running N+1 test using discriminant 43, base 2+sqrt(43)
 Calling N+1 BLS with factored part 100.00% and helper 0.54% (301.63% proof)
 1104!53-1 is prime! (0.0582s+0.0080s) (digits:56)
 
 Primality testing 1107!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 61, base 1+sqrt(61)
 Running N+1 test using discriminant 61, base 2+sqrt(61)
 Calling N+1 BLS with factored part 100.00% and helper 5.41% (305.95% proof)
 1107!53-1 is prime! (0.0580s+0.0166s) (digits:56)
 
 Primality testing 1119!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 73, base 1+sqrt(73)
 Running N+1 test using discriminant 73, base 2+sqrt(73)
 Calling N+1 BLS with factored part 100.00% and helper 8.51% (309.57% proof)
 1119!53-1 is prime! (0.0498s+0.0142s) (digits:57)
 
 Primality testing 1146!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 41
 Running N+1 test using discriminant 71, base 1+sqrt(71)
 Running N+1 test using discriminant 71, base 2+sqrt(71)
 Calling N+1 BLS with factored part 100.00% and helper 11.40% (312.44% proof)
 1146!53-1 is prime! (0.0439s+0.0129s) (digits:59)
 
 Primality testing 1150!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 43
 Running N+1 test using discriminant 53, base 1+sqrt(53)
 Running N+1 test using discriminant 53, base 2+sqrt(53)
 Calling N+1 BLS with factored part 100.00% and helper 0.52% (300.52% proof)
 1150!53-1 is prime! (0.0590s+0.0139s) (digits:59)
 
 Primality testing 1185!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 41
 Running N+1 test using discriminant 47, base 1+sqrt(47)
 Running N+1 test using discriminant 47, base 2+sqrt(47)
 Calling N+1 BLS with factored part 100.00% and helper 0.50% (301.49% proof)
 1185!53-1 is prime! (0.0600s+0.0148s) (digits:61)
 
 Primality testing 1206!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 43
 Running N+1 test using discriminant 59, base 1+sqrt(59)
 Running N+1 test using discriminant 59, base 2+sqrt(59)
 Calling N+1 BLS with factored part 100.00% and helper 0.49% (301.47% proof)
 1206!53-1 is prime! (0.0538s+0.0121s) (digits:62)
 
 Primality testing 1222!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 59
 Running N+1 test using discriminant 73, base 1+sqrt(73)
 Running N+1 test using discriminant 73, base 2+sqrt(73)
 Calling N+1 BLS with factored part 100.00% and helper 0.48% (300.48% proof)
 1222!53-1 is prime! (0.0593s+0.0136s) (digits:63)
 
 Primality testing 1228!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 29
 Running N+1 test using discriminant 53, base 1+sqrt(53)
 Running N+1 test using discriminant 53, base 2+sqrt(53)
 Calling N+1 BLS with factored part 100.00% and helper 0.48% (300.48% proof)
 1228!53-1 is prime! (0.0684s+0.0119s) (digits:64)
 
 Primality testing 1256!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 43
 Running N+1 test using discriminant 61, base 1+sqrt(61)
 Running N+1 test using discriminant 61, base 2+sqrt(61)
 Calling N+1 BLS with factored part 100.00% and helper 6.54% (307.48% proof)
 1256!53-1 is prime! (0.0557s+0.0178s) (digits:65)
 
 Primality testing 1312!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 103, base 1+sqrt(103)
 Running N+1 test using discriminant 103, base 2+sqrt(103)
 Calling N+1 BLS with factored part 100.00% and helper 3.11% (303.56% proof)
 1312!53-1 is prime! (0.0676s+0.0117s) (digits:68)
 
 Primality testing 1343!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 61, base 1+sqrt(61)
 Running N+1 test using discriminant 61, base 2+sqrt(61)
 Calling N+1 BLS with factored part 100.00% and helper 4.74% (305.60% proof)
 1343!53-1 is prime! (0.0569s+0.0125s) (digits:71)
 
 Primality testing 1344!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 41
 Running N+1 test using discriminant 47, base 1+sqrt(47)
 Running N+1 test using discriminant 47, base 2+sqrt(47)
 Calling N+1 BLS with factored part 100.00% and helper 4.31% (305.60% proof)
 1344!53-1 is prime! (0.0685s+0.0149s) (digits:71)
 
 Primality testing 1409!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 43
 Running N+1 test using discriminant 53, base 1+sqrt(53)
 Running N+1 test using discriminant 53, base 2+sqrt(53)
 Calling N+1 BLS with factored part 100.00% and helper 0.41% (300.41% proof)
 1409!53-1 is prime! (0.0680s+0.0113s) (digits:74)
 
 Primality testing 1421!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 37
 Running N+1 test using discriminant 47, base 1+sqrt(47)
 Running N+1 test using discriminant 47, base 2+sqrt(47)
 Calling N+1 BLS with factored part 100.00% and helper 3.66% (304.47% proof)
 1421!53-1 is prime! (0.0543s+0.0148s) (digits:75)
 
 Primality testing 1535!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 59
 Running N+1 test using discriminant 73, base 1+sqrt(73)
 Running N+1 test using discriminant 73, base 2+sqrt(73)
 Calling N+1 BLS with factored part 100.00% and helper 2.61% (303.36% proof)
 1535!53-1 is prime! (0.0616s+0.0143s) (digits:81)
 
 Primality testing 1546!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 41
 Running N+1 test using discriminant 53, base 1+sqrt(53)
 Running N+1 test using discriminant 53, base 2+sqrt(53)
 Calling N+1 BLS with factored part 100.00% and helper 7.33% (307.33% proof)
 1546!53-1 is prime! (0.0603s+0.0098s) (digits:83)
 
 Primality testing 1559!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 37
 Running N+1 test using discriminant 53, base 1+sqrt(53)
 Running N+1 test using discriminant 53, base 2+sqrt(53)
 Calling N+1 BLS with factored part 100.00% and helper 3.64% (304.36% proof)
 1559!53-1 is prime! (0.0498s+0.0139s) (digits:83)
 
 Primality testing 1611!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 59
 Running N+1 test using discriminant 97, base 1+sqrt(97)
 Running N+1 test using discriminant 97, base 2+sqrt(97)
 Calling N+1 BLS with factored part 100.00% and helper 3.50% (303.50% proof)
 1611!53-1 is prime! (0.0548s+0.0115s) (digits:87)
 
 Primality testing 1635!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 59
 Running N+1 test using discriminant 71, base 1+sqrt(71)
 Running N+1 test using discriminant 71, base 2+sqrt(71)
 Calling N+1 BLS with factored part 100.00% and helper 0.35% (300.35% proof)
 1635!53-1 is prime! (0.0630s+0.0096s) (digits:88)
 
 Primality testing 1637!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 67, base 1+sqrt(67)
 Running N+1 test using discriminant 67, base 2+sqrt(67)
 Calling N+1 BLS with factored part 100.00% and helper 0.35% (300.69% proof)
 1637!53-1 is prime! (0.0549s+0.0114s) (digits:88)
 
 Primality testing 1661!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 61, base 1+sqrt(61)
 Running N+1 test using discriminant 61, base 2+sqrt(61)
 Calling N+1 BLS with factored part 100.00% and helper 0.34% (300.34% proof)
 1661!53-1 is prime! (0.0548s+0.0186s) (digits:90)
 
 Primality testing 1667!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 83, base 1+sqrt(83)
 Running N+1 test using discriminant 83, base 2+sqrt(83)
 Calling N+1 BLS with factored part 100.00% and helper 3.03% (303.37% proof)
 1667!53-1 is prime! (0.0652s+0.0067s) (digits:90)
 
 Primality testing 1694!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 71, base 1+sqrt(71)
 Running N+1 test using discriminant 71, base 2+sqrt(71)
 Calling N+1 BLS with factored part 100.00% and helper 2.33% (303.00% proof)
 1694!53-1 is prime! (0.0477s+0.0075s) (digits:91)
 
 Primality testing 1736!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 43
 Running N+1 test using discriminant 59, base 1+sqrt(59)
 Running N+1 test using discriminant 59, base 2+sqrt(59)
 Calling N+1 BLS with factored part 100.00% and helper 0.32% (300.32% proof)
 1736!53-1 is prime! (0.0538s+0.0140s) (digits:94)
 
 Primality testing 1786!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 61, base 1+sqrt(61)
 Running N+1 test using discriminant 61, base 2+sqrt(61)
 Calling N+1 BLS with factored part 100.00% and helper 0.31% (300.63% proof)
 1786!53-1 is prime! (0.0591s+0.0103s) (digits:97)
 
 Primality testing 1827!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 67
 Running N+1 test using discriminant 83, base 1+sqrt(83)
 Running N+1 test using discriminant 83, base 2+sqrt(83)
 Calling N+1 BLS with factored part 100.00% and helper 2.74% (303.34% proof)
 1827!53-1 is prime! (0.0646s+0.0141s) (digits:100)
 
 Primality testing 1866!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 59
 Running N+1 test using discriminant 71, base 1+sqrt(71)
 Running N+1 test using discriminant 71, base 2+sqrt(71)
 Calling N+1 BLS with factored part 100.00% and helper 0.30% (300.30% proof)
 1866!53-1 is prime! (0.0552s+0.0137s) (digits:102)
 
 Primality testing 1930!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 107, base 2+sqrt(107)
 Running N+1 test using discriminant 107, base 3+sqrt(107)
 Calling N+1 BLS with factored part 100.00% and helper 3.13% (303.13% proof)
 1930!53-1 is prime! (0.0649s+0.0067s) (digits:106)
 
 Primality testing 1932!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 47
 Running N+1 test using discriminant 67, base 1+sqrt(67)
 Running N+1 test using discriminant 67, base 2+sqrt(67)
 Calling N+1 BLS with factored part 100.00% and helper 0.28% (300.57% proof)
 1932!53-1 is prime! (0.0497s+0.0162s) (digits:106)
 
 Primality testing 1935!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 67
 Running N+1 test using discriminant 83, base 1+sqrt(83)
 Running N+1 test using discriminant 83, base 2+sqrt(83)
 Calling N+1 BLS with factored part 100.00% and helper 0.28% (300.85% proof)
 1935!53-1 is prime! (0.0692s+0.0107s) (digits:106)
 
 Primality testing 1947!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 73, base 1+sqrt(73)
 Running N+1 test using discriminant 73, base 2+sqrt(73)
 Calling N+1 BLS with factored part 100.00% and helper 0.28% (300.57% proof)
 1947!53-1 is prime! (0.0639s+0.0071s) (digits:107)
 
 Primality testing 1956!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 71, base 1+sqrt(71)
 Running N+1 test using discriminant 71, base 2+sqrt(71)
 Calling N+1 BLS with factored part 100.00% and helper 0.28% (300.56% proof)
 1956!53-1 is prime! (0.0643s+0.0047s) (digits:107)
 
 Primality testing 1966!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 61, base 1+sqrt(61)
 Running N+1 test using discriminant 61, base 2+sqrt(61)
 Calling N+1 BLS with factored part 100.00% and helper 0.28% (300.28% proof)
 1966!53-1 is prime! (0.0539s+0.0133s) (digits:108)
 
 Primality testing 1969!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 79
 Running N+1 test using discriminant 113, base 1+sqrt(113)
 Running N+1 test using discriminant 113, base 2+sqrt(113)
 Calling N+1 BLS with factored part 100.00% and helper 2.23% (302.23% proof)
 1969!53-1 is prime! (0.0647s+0.0113s) (digits:109)
 
 Primality testing 2040!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 73, base 1+sqrt(73)
 Running N+1 test using discriminant 73, base 2+sqrt(73)
 Calling N+1 BLS with factored part 100.00% and helper 2.68% (303.22% proof)
 2040!53-1 is prime! (0.0526s+0.0131s) (digits:113)
 
 Primality testing 2055!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 83, base 1+sqrt(83)
 Running N+1 test using discriminant 83, base 2+sqrt(83)
 Calling N+1 BLS with factored part 100.00% and helper 0.27% (300.80% proof)
 2055!53-1 is prime! (0.0654s+0.0091s) (digits:114)
 
 Primality testing 2091!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 47
 Running N+1 test using discriminant 67, base 1+sqrt(67)
 Running N+1 test using discriminant 67, base 2+sqrt(67)
 Calling N+1 BLS with factored part 100.00% and helper 1.56% (301.82% proof)
 2091!53-1 is prime! (0.0529s+0.0077s) (digits:116)
 
 Primality testing 2108!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 83, base 1+sqrt(83)
 Running N+1 test using discriminant 83, base 2+sqrt(83)
 Calling N+1 BLS with factored part 100.00% and helper 2.59% (303.11% proof)
 2108!53-1 is prime! (0.0648s+0.0095s) (digits:117)
 
 Primality testing 2109!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 101, base 1+sqrt(101)
 Running N+1 test using discriminant 101, base 2+sqrt(101)
 Calling N+1 BLS with factored part 100.00% and helper 0.26% (300.78% proof)
 2109!53-1 is prime! (0.0581s+0.0142s) (digits:117)
 
 Primality testing 2143!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 83, base 1+sqrt(83)
 Running N+1 test using discriminant 83, base 2+sqrt(83)
 Calling N+1 BLS with factored part 100.00% and helper 0.25% (300.25% proof)
 2143!53-1 is prime! (0.0392s+0.0032s) (digits:119)
 
 Primality testing 2175!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 61
 Running N+1 test using discriminant 101, base 1+sqrt(101)
 Running N+1 test using discriminant 101, base 2+sqrt(101)
 Calling N+1 BLS with factored part 100.00% and helper 4.00% (304.50% proof)
 2175!53-1 is prime! (0.0546s+0.0206s) (digits:121)
 
 Primality testing 2189!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 83, base 1+sqrt(83)
 Running N+1 test using discriminant 83, base 2+sqrt(83)
 Calling N+1 BLS with factored part 100.00% and helper 0.25% (300.25% proof)
 2189!53-1 is prime! (0.0656s+0.0103s) (digits:122)
 
 Primality testing 2195!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 83, base 1+sqrt(83)
 Running N+1 test using discriminant 83, base 2+sqrt(83)
 Calling N+1 BLS with factored part 100.00% and helper 2.22% (302.22% proof)
 2195!53-1 is prime! (0.0545s+0.0033s) (digits:123)
 
 Primality testing 2246!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 97, base 1+sqrt(97)
 Running N+1 test using discriminant 97, base 2+sqrt(97)
 Calling N+1 BLS with factored part 100.00% and helper 0.24% (300.24% proof)
 2246!53-1 is prime! (0.0552s+0.0103s) (digits:126)
 
 Primality testing 2319!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 107, base 2+sqrt(107)
 Running N+1 test using discriminant 107, base 3+sqrt(107)
 Calling N+1 BLS with factored part 100.00% and helper 0.23% (300.23% proof)
 2319!53-1 is prime! (0.0658s+0.0101s) (digits:130)
 
 Primality testing 2320!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 59
 Running N+1 test using discriminant 163, base 1+sqrt(163)
 Running N+1 test using discriminant 163, base 2+sqrt(163)
 Calling N+1 BLS with factored part 94.90% and helper 0.23% (284.92% proof)
 2320!53-1 is prime! (0.0381s+0.0156s) (digits:130)
 
 Primality testing 2341!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 89
 Running N+1 test using discriminant 101, base 1+sqrt(101)
 Running N+1 test using discriminant 101, base 3+sqrt(101)
 Calling N+1 BLS with factored part 94.74% and helper 0.23% (284.90% proof)
 2341!53-1 is prime! (0.0695s+0.0103s) (digits:132)
 
 Primality testing 2397!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 73
 Running N+1 test using discriminant 97, base 1+sqrt(97)
 Running N+1 test using discriminant 97, base 2+sqrt(97)
 Calling N+1 BLS with factored part 100.00% and helper 1.78% (301.78% proof)
 2397!53-1 is prime! (0.0705s+0.0102s) (digits:136)
 
 Primality testing 2406!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 61
 Running N+1 test using discriminant 103, base 1+sqrt(103)
 Running N+1 test using discriminant 103, base 2+sqrt(103)
 Calling N+1 BLS with factored part 100.00% and helper 0.22% (300.67% proof)
 2406!53-1 is prime! (0.0500s+0.0041s) (digits:136)
 
 Primality testing 2411!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 107
 Running N+1 test using discriminant 157, base 1+sqrt(157)
 Running N+1 test using discriminant 157, base 2+sqrt(157)
 Calling N+1 BLS with factored part 100.00% and helper 2.00% (302.44% proof)
 2411!53-1 is prime! (0.0557s+0.0043s) (digits:136)
 
 Primality testing 2458!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 83
 Running N+1 test using discriminant 97, base 1+sqrt(97)
 Running N+1 test using discriminant 97, base 2+sqrt(97)
 Calling N+1 BLS with factored part 100.00% and helper 1.52% (302.17% proof)
 2458!53-1 is prime! (0.0660s+0.0102s) (digits:140)
 
 Primality testing 2481!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 89
 Running N+1 test using discriminant 107, base 1+sqrt(107)
 Running N+1 test using discriminant 107, base 2+sqrt(107)
 Calling N+1 BLS with factored part 100.00% and helper 0.22% (300.22% proof)
 2481!53-1 is prime! (0.0646s+0.0131s) (digits:141)
 
 Primality testing 2505!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 71
 Running N+1 test using discriminant 109, base 1+sqrt(109)
 Running N+1 test using discriminant 109, base 2+sqrt(109)
 Calling N+1 BLS with factored part 92.80% and helper 0.21% (278.81% proof)
 2505!53-1 is prime! (0.0570s+0.0021s) (digits:143)
 
 Primality testing 2520!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 61, base 1+sqrt(61)
 Running N+1 test using discriminant 61, base 2+sqrt(61)
 Calling N+1 BLS with factored part 100.00% and helper 2.32% (302.74% proof)
 2520!53-1 is prime! (0.0674s+0.0076s) (digits:143)
 
 Primality testing 2588!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 67, base 1+sqrt(67)
 Running N+1 test using discriminant 67, base 2+sqrt(67)
 Calling N+1 BLS with factored part 100.00% and helper 0.20% (300.20% proof)
 2588!53-1 is prime! (0.0646s+0.0130s) (digits:147)
 
 Primality testing 2608!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 113, base 1+sqrt(113)
 Running N+1 test using discriminant 113, base 2+sqrt(113)
 Calling N+1 BLS with factored part 95.54% and helper 1.42% (288.64% proof)
 2608!53-1 is prime! (0.0516s+0.0077s) (digits:149)
 
 Primality testing 2760!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 79, base 1+sqrt(79)
 Running N+1 test using discriminant 79, base 2+sqrt(79)
 Calling N+1 BLS with factored part 95.81% and helper 1.90% (289.52% proof)
 2760!53-1 is prime! (0.0622s+0.0012s) (digits:159)
 
 Primality testing 2802!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 73, base 1+sqrt(73)
 Running N+1 test using discriminant 73, base 2+sqrt(73)
 Calling N+1 BLS with factored part 95.87% and helper 1.88% (289.68% proof)
 2802!53-1 is prime! (0.0633s+0.0138s) (digits:161)
 
 Primality testing 2850!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 59
 Running N+1 test using discriminant 89, base 1+sqrt(89)
 Running N+1 test using discriminant 89, base 2+sqrt(89)
 Calling N+1 BLS with factored part 93.93% and helper 0.18% (281.99% proof)
 2850!53-1 is prime! (0.0575s+0.0015s) (digits:165)
 
 Primality testing 2924!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 89, base 1+sqrt(89)
 Running N+1 test using discriminant 89, base 2+sqrt(89)
 Calling N+1 BLS with factored part 91.99% and helper 4.45% (280.60% proof)
 2924!53-1 is prime! (0.0623s+0.0095s) (digits:170)
 
 Primality testing 2950!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 109, base 1+sqrt(109)
 Running N+1 test using discriminant 109, base 2+sqrt(109)
 Calling N+1 BLS with factored part 92.05% and helper 0.18% (276.50% proof)
 2950!53-1 is prime! (0.0679s+0.0135s) (digits:171)
 
 Primality testing 2954!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 97
 Running N+1 test using discriminant 113, base 1+sqrt(113)
 Running N+1 test using discriminant 113, base 2+sqrt(113)
 Calling N+1 BLS with factored part 92.06% and helper 0.18% (276.72% proof)
 2954!53-1 is prime! (0.0528s+0.0137s) (digits:171)
 
 Primality testing 2972!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 101
 Running N+1 test using discriminant 127, base 1+sqrt(127)
 Running N+1 test using discriminant 127, base 2+sqrt(127)
 Calling N+1 BLS with factored part 96.15% and helper 1.58% (290.19% proof)
 2972!53-1 is prime! (0.0530s+0.0098s) (digits:173)
 
 Primality testing 2986!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 83
 Running N+1 test using discriminant 97, base 1+sqrt(97)
 Running N+1 test using discriminant 97, base 2+sqrt(97)
 Calling N+1 BLS with factored part 100.00% and helper 0.17% (300.52% proof)
 2986!53-1 is prime! (0.0658s+0.0097s) (digits:174)
 
 Primality testing 3017!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 109, base 1+sqrt(109)
 Running N+1 test using discriminant 109, base 2+sqrt(109)
 Calling N+1 BLS with factored part 92.24% and helper 0.17% (277.07% proof)
 3017!53-1 is prime! (0.0504s+0.0114s) (digits:175)
 
 Primality testing 3037!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 83, base 1+sqrt(83)
 Running N+1 test using discriminant 83, base 2+sqrt(83)
 Calling N+1 BLS with factored part 94.20% and helper 0.17% (283.11% proof)
 3037!53-1 is prime! (0.0452s+0.0054s) (digits:177)
 
 Primality testing 3049!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 79
 Running N+1 test using discriminant 97, base 1+sqrt(97)
 Running N+1 test using discriminant 97, base 2+sqrt(97)
 Calling N+1 BLS with factored part 94.06% and helper 0.17% (282.51% proof)
 3049!53-1 is prime! (0.0566s+0.0146s) (digits:178)
 
 Primality testing 3051!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 79, base 1+sqrt(79)
 Running N+1 test using discriminant 79, base 2+sqrt(79)
 Calling N+1 BLS with factored part 94.23% and helper 1.70% (284.72% proof)
 3051!53-1 is prime! (0.0615s+0.0158s) (digits:178)
 
 Primality testing 3105!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 79, base 1+sqrt(79)
 Running N+1 test using discriminant 79, base 2+sqrt(79)
 Calling N+1 BLS with factored part 100.00% and helper 0.17% (300.17% proof)
 3105!53-1 is prime! (0.0564s+0.0138s) (digits:181)
 
 Primality testing 3111!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 109, base 1+sqrt(109)
 Running N+1 test using discriminant 109, base 2+sqrt(109)
 Calling N+1 BLS with factored part 100.00% and helper 0.17% (300.17% proof)
 3111!53-1 is prime! (0.0644s+0.0115s) (digits:182)
 
 Primality testing 3235!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 79
 Running N+1 test using discriminant 97, base 1+sqrt(97)
 Running N+1 test using discriminant 97, base 2+sqrt(97)
 Calling N+1 BLS with factored part 92.83% and helper 0.16% (278.82% proof)
 3235!53-1 is prime! (0.0606s+0.0131s) (digits:190)
 
 Primality testing 3311!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 67
 Running N+1 test using discriminant 101, base 1+sqrt(101)
 Running N+1 test using discriminant 101, base 2+sqrt(101)
 Calling N+1 BLS with factored part 93.03% and helper 0.15% (279.57% proof)
 3311!53-1 is prime! (0.0502s+0.0136s) (digits:195)
 
 Primality testing 3315!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 97
 Running N+1 test using discriminant 113, base 1+sqrt(113)
 Running N+1 test using discriminant 113, base 2+sqrt(113)
 Calling N+1 BLS with factored part 96.45% and helper 1.39% (291.04% proof)
 3315!53-1 is prime! (0.0723s+0.0115s) (digits:195)
 
 Primality testing 3397!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 109, base 1+sqrt(109)
 Running N+1 test using discriminant 109, base 2+sqrt(109)
 Calling N+1 BLS with factored part 96.54% and helper 1.20% (291.13% proof)
 3397!53-1 is prime! (0.0691s+0.0071s) (digits:201)
 
 Primality testing 3486!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 109
 Running N+1 test using discriminant 139, base 1+sqrt(139)
 Running N+1 test using discriminant 139, base 2+sqrt(139)
 Calling N+1 BLS with factored part 89.91% and helper 0.15% (270.18% proof)
 3486!53-1 is prime! (0.0571s+0.0119s) (digits:207)
 
 Primality testing 3539!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 107, base 2+sqrt(107)
 Running N+1 test using discriminant 107, base 3+sqrt(107)
 Calling N+1 BLS with factored part 88.36% and helper 0.14% (265.52% proof)
 3539!53-1 is prime! (0.0516s+0.0014s) (digits:210)
 
 Primality testing 3774!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 97, base 1+sqrt(97)
 Running N+1 test using discriminant 97, base 2+sqrt(97)
 Calling N+1 BLS with factored part 93.87% and helper 0.13% (282.00% proof)
 3774!53-1 is prime! (0.0702s+0.0082s) (digits:226)
 
 Primality testing 3917!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 137
 Running N+1 test using discriminant 149, base 1+sqrt(149)
 Running N+1 test using discriminant 149, base 2+sqrt(149)
 Calling N+1 BLS with factored part 92.56% and helper 0.13% (278.08% proof)
 3917!53-1 is prime! (0.0608s+0.0136s) (digits:235)
 
 Primality testing 3989!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 109
 Running N+1 test using discriminant 151, base 1+sqrt(151)
 Running N+1 test using discriminant 151, base 2+sqrt(151)
 Calling N+1 BLS with factored part 92.86% and helper 0.13% (278.82% proof)
 3989!53-1 is prime! (0.0747s+0.0040s) (digits:241)
 
 Primality testing 4023!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 107, base 2+sqrt(107)
 Running N+1 test using discriminant 107, base 3+sqrt(107)
 Calling N+1 BLS with factored part 92.79% and helper 1.24% (279.98% proof)
 4023!53-1 is prime! (0.0753s+0.0069s) (digits:243)
 
 Primality testing 4075!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 107
 Running N+1 test using discriminant 139, base 1+sqrt(139)
 Running N+1 test using discriminant 139, base 2+sqrt(139)
 Calling N+1 BLS with factored part 90.20% and helper 0.12% (270.71% proof)
 4075!53-1 is prime! (0.0612s+0.0133s) (digits:246)
 
 Primality testing 4078!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 113
 Running N+1 test using discriminant 149, base 1+sqrt(149)
 Running N+1 test using discriminant 149, base 2+sqrt(149)
 Calling N+1 BLS with factored part 91.67% and helper 0.12% (275.12% proof)
 4078!53-1 is prime! (0.0627s+0.0047s) (digits:246)
 
 Primality testing 4115!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 137, base 1+sqrt(137)
 Running N+1 test using discriminant 137, base 2+sqrt(137)
 Calling N+1 BLS with factored part 92.98% and helper 1.33% (280.27% proof)
 4115!53-1 is prime! (0.0616s+0.0093s) (digits:249)
 
 Primality testing 4572!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 139, base 1+sqrt(139)
 Running N+1 test using discriminant 139, base 2+sqrt(139)
 Calling N+1 BLS with factored part 91.19% and helper 0.11% (273.90% proof)
 4572!53-1 is prime! (0.0665s+0.0116s) (digits:281)
 
 Primality testing 4618!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 139, base 1+sqrt(139)
 Running N+1 test using discriminant 139, base 2+sqrt(139)
 Calling N+1 BLS with factored part 90.33% and helper 0.85% (271.84% proof)
 4618!53-1 is prime! (0.0814s+0.0013s) (digits:284)
 
 Primality testing 4751!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 131, base 1+sqrt(131)
 Running N+1 test using discriminant 131, base 2+sqrt(131)
 Calling N+1 BLS with factored part 89.29% and helper 0.10% (267.97% proof)
 4751!53-1 is prime! (0.0885s+0.0054s) (digits:293)
 
 Primality testing 4757!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 131, base 1+sqrt(131)
 Running N+1 test using discriminant 131, base 2+sqrt(131)
 Calling N+1 BLS with factored part 90.53% and helper 0.10% (271.71% proof)
 4757!53-1 is prime! (0.0771s+0.0115s) (digits:293)
 
 Primality testing 4822!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 137, base 1+sqrt(137)
 Running N+1 test using discriminant 137, base 2+sqrt(137)
 Calling N+1 BLS with factored part 88.13% and helper 0.10% (264.60% proof)
 4822!53-1 is prime! (0.0690s+0.0088s) (digits:297)
 
 Primality testing 4838!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 101, base 1+sqrt(101)
 Running N+1 test using discriminant 101, base 2+sqrt(101)
 Calling N+1 BLS with factored part 91.94% and helper 0.10% (275.91% proof)
 4838!53-1 is prime! (0.0605s+0.0012s) (digits:299)
 
 Primality testing 4864!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 109, base 1+sqrt(109)
 Running N+1 test using discriminant 109, base 2+sqrt(109)
 Calling N+1 BLS with factored part 89.57% and helper 0.10% (268.91% proof)
 4864!53-1 is prime! (0.0708s+0.0041s) (digits:301)
 
 Primality testing 4978!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 107, base 2+sqrt(107)
 Running N+1 test using discriminant 107, base 3+sqrt(107)
 Calling N+1 BLS with factored part 91.10% and helper 0.10% (273.39% proof)
 4978!53-1 is prime! (0.0729s+0.0019s) (digits:308)
 
 Primality testing 5047!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 157
 Running N+1 test using discriminant 193, base 1+sqrt(193)
 Running N+1 test using discriminant 193, base 2+sqrt(193)
 Calling N+1 BLS with factored part 89.82% and helper 0.77% (270.41% proof)
 5047!53-1 is prime! (0.0702s+0.0100s) (digits:314)
 
 Primality testing 5251!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 179
 Running N+1 test using discriminant 193, base 1+sqrt(193)
 Running N+1 test using discriminant 193, base 2+sqrt(193)
 Calling N+1 BLS with factored part 88.13% and helper 0.09% (264.67% proof)
 5251!53-1 is prime! (0.0643s+0.0098s) (digits:328)
 
 Primality testing 5320!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 139, base 1+sqrt(139)
 Running N+1 test using discriminant 139, base 2+sqrt(139)
 Calling N+1 BLS with factored part 91.58% and helper 1.81% (276.72% proof)
 5320!53-1 is prime! (0.0723s+0.0068s) (digits:333)
 
 Primality testing 5403!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 109, base 1+sqrt(109)
 Running N+1 test using discriminant 109, base 2+sqrt(109)
 Calling N+1 BLS with factored part 90.81% and helper 1.43% (274.04% proof)
 5403!53-1 is prime! (0.0630s+0.0012s) (digits:338)
 
 Primality testing 5547!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 137, base 1+sqrt(137)
 Running N+1 test using discriminant 137, base 2+sqrt(137)
 Calling N+1 BLS with factored part 91.00% and helper 0.09% (273.18% proof)
 5547!53-1 is prime! (0.0570s+0.0014s) (digits:349)
 
 Primality testing 5604!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 113
 Running N+1 test using discriminant 179, base 1+sqrt(179)
 Running N+1 test using discriminant 179, base 2+sqrt(179)
 Calling N+1 BLS with factored part 89.05% and helper 0.09% (267.41% proof)
 5604!53-1 is prime! (0.0553s+0.0034s) (digits:353)
 
 Primality testing 5649!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 131
 Running N+1 test using discriminant 179, base 1+sqrt(179)
 Running N+1 test using discriminant 179, base 2+sqrt(179)
 Calling N+1 BLS with factored part 91.79% and helper 0.08% (275.61% proof)
 5649!53-1 is prime! (0.0660s+0.0083s) (digits:356)
 
 Primality testing 5820!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 151, base 1+sqrt(151)
 Running N+1 test using discriminant 151, base 2+sqrt(151)
 Calling N+1 BLS with factored part 86.48% and helper 0.08% (259.67% proof)
 5820!53-1 is prime! (0.0650s+0.0017s) (digits:368)
 
 Primality testing 5857!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 139
 Running N+1 test using discriminant 173, base 1+sqrt(173)
 Running N+1 test using discriminant 173, base 2+sqrt(173)
 Calling N+1 BLS with factored part 90.33% and helper 0.65% (271.87% proof)
 5857!53-1 is prime! (0.0669s+0.0082s) (digits:371)
 
 Primality testing 5873!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 127, base 1+sqrt(127)
 Running N+1 test using discriminant 127, base 2+sqrt(127)
 Calling N+1 BLS with factored part 86.62% and helper 0.08% (259.94% proof)
 5873!53-1 is prime! (0.0659s+0.0027s) (digits:372)
 
 Primality testing 5911!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 157, base 1+sqrt(157)
 Running N+1 test using discriminant 157, base 2+sqrt(157)
 Calling N+1 BLS with factored part 90.59% and helper 0.08% (271.92% proof)
 5911!53-1 is prime! (0.0718s+0.0085s) (digits:375)
 
 Primality testing 6052!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 149
 Running N+1 test using discriminant 157, base 1+sqrt(157)
 Running N+1 test using discriminant 157, base 2+sqrt(157)
 Calling N+1 BLS with factored part 93.57% and helper 0.08% (280.96% proof)
 6052!53-1 is prime! (0.0729s+0.0022s) (digits:385)
 
 Primality testing 6056!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 149, base 1+sqrt(149)
 Running N+1 test using discriminant 149, base 2+sqrt(149)
 Calling N+1 BLS with factored part 87.16% and helper 0.63% (262.10% proof)
 6056!53-1 is prime! (0.0678s+0.0015s) (digits:385)
 
 Primality testing 6212!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 127, base 1+sqrt(127)
 Running N+1 test using discriminant 127, base 2+sqrt(127)
 Calling N+1 BLS with factored part 87.60% and helper 0.76% (263.70% proof)
 6212!53-1 is prime! (0.0683s+0.0056s) (digits:396)
 
 Primality testing 6229!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 197, base 1+sqrt(197)
 Running N+1 test using discriminant 197, base 2+sqrt(197)
 Calling N+1 BLS with factored part 90.21% and helper 0.08% (270.71% proof)
 6229!53-1 is prime! (0.0839s+0.0034s) (digits:397)
 
 Primality testing 6290!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 197, base 1+sqrt(197)
 Running N+1 test using discriminant 197, base 2+sqrt(197)
 Calling N+1 BLS with factored part 95.57% and helper 0.08% (286.79% proof)
 6290!53-1 is prime! (0.0885s+0.0024s) (digits:402)
 
 Primality testing 6393!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 163, base 1+sqrt(163)
 Running N+1 test using discriminant 163, base 3+sqrt(163)
 Calling N+1 BLS with factored part 85.19% and helper 0.07% (255.78% proof)
 6393!53-1 is prime! (0.0995s+0.0014s) (digits:409)
 
 Primality testing 6403!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 193
 Running N+1 test using discriminant 233, base 1+sqrt(233)
 Running N+1 test using discriminant 233, base 2+sqrt(233)
 Calling N+1 BLS with factored part 86.23% and helper 0.07% (258.84% proof)
 6403!53-1 is prime! (0.0833s+0.0025s) (digits:410)
 
 Primality testing 6452!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 191
 Running N+1 test using discriminant 199, base 1+sqrt(199)
 Running N+1 test using discriminant 199, base 2+sqrt(199)
 Calling N+1 BLS with factored part 87.23% and helper 0.07% (261.75% proof)
 6452!53-1 is prime! (0.0902s+0.0014s) (digits:413)
 
 Primality testing 6479!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 167, base 1+sqrt(167)
 Running N+1 test using discriminant 167, base 2+sqrt(167)
 Calling N+1 BLS with factored part 82.95% and helper 0.07% (248.91% proof)
 6479!53-1 is prime! (0.0795s+0.0023s) (digits:416)
 
 Primality testing 6487!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 211, base 1+sqrt(211)
 Running N+1 test using discriminant 211, base 2+sqrt(211)
 Calling N+1 BLS with factored part 88.04% and helper 0.07% (264.28% proof)
 6487!53-1 is prime! (0.0897s+0.0011s) (digits:416)
 
 Primality testing 6529!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 167, base 1+sqrt(167)
 Running N+1 test using discriminant 167, base 2+sqrt(167)
 Calling N+1 BLS with factored part 89.71% and helper 0.07% (269.35% proof)
 6529!53-1 is prime! (0.1049s+0.0012s) (digits:419)
 
 Primality testing 6551!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 151
 Running N+1 test using discriminant 257, base 1+sqrt(257)
 Running N+1 test using discriminant 257, base 2+sqrt(257)
 Calling N+1 BLS with factored part 88.24% and helper 0.07% (264.95% proof)
 6551!53-1 is prime! (0.0962s+0.0071s) (digits:420)
 
 Primality testing 6562!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 233, base 1+sqrt(233)
 Running N+1 test using discriminant 233, base 2+sqrt(233)
 Calling N+1 BLS with factored part 86.60% and helper 0.72% (260.67% proof)
 6562!53-1 is prime! (0.0858s+0.0011s) (digits:421)
 
 Primality testing 6710!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 151, base 1+sqrt(151)
 Running N+1 test using discriminant 151, base 2+sqrt(151)
 Calling N+1 BLS with factored part 88.63% and helper 0.07% (265.95% proof)
 6710!53-1 is prime! (0.0805s+0.0032s) (digits:432)
 
 Primality testing 6713!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 233, base 1+sqrt(233)
 Running N+1 test using discriminant 233, base 2+sqrt(233)
 Calling N+1 BLS with factored part 91.00% and helper 0.07% (273.06% proof)
 6713!53-1 is prime! (0.0786s+0.0014s) (digits:432)
 
 Primality testing 6826!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 239, base 1+sqrt(239)
 Running N+1 test using discriminant 239, base 2+sqrt(239)
 Calling N+1 BLS with factored part 85.55% and helper 0.62% (257.26% proof)
 6826!53-1 is prime! (0.0800s+0.0014s) (digits:440)
 
 Primality testing 6971!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 197, base 1+sqrt(197)
 Running N+1 test using discriminant 197, base 2+sqrt(197)
 Calling N+1 BLS with factored part 88.77% and helper 0.07% (266.51% proof)
 6971!53-1 is prime! (0.0892s+0.0013s) (digits:451)
 
 Primality testing 7002!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 157, base 1+sqrt(157)
 Running N+1 test using discriminant 157, base 2+sqrt(157)
 Calling N+1 BLS with factored part 89.02% and helper 0.07% (267.13% proof)
 7002!53-1 is prime! (0.0894s+0.0017s) (digits:453)
 
 Primality testing 7131!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 163
 Running N+1 test using discriminant 269, base 1+sqrt(269)
 Running N+1 test using discriminant 269, base 2+sqrt(269)
 Calling N+1 BLS with factored part 86.18% and helper 0.72% (259.45% proof)
 7131!53-1 is prime! (0.0699s+0.0010s) (digits:463)
 
 Primality testing 7290!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 167
 Running N+1 test using discriminant 223, base 1+sqrt(223)
 Running N+1 test using discriminant 223, base 2+sqrt(223)
 Calling N+1 BLS with factored part 85.70% and helper 0.06% (257.22% proof)
 7290!53-1 is prime! (0.0928s+0.0012s) (digits:474)
 
 Primality testing 7293!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 151
 Running N+1 test using discriminant 277, base 1+sqrt(277)
 Running N+1 test using discriminant 277, base 2+sqrt(277)
 Calling N+1 BLS with factored part 86.46% and helper 0.06% (259.50% proof)
 7293!53-1 is prime! (0.0875s+0.0043s) (digits:474)
 
 Primality testing 7386!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 193, base 1+sqrt(193)
 Running N+1 test using discriminant 193, base 2+sqrt(193)
 Calling N+1 BLS with factored part 87.79% and helper 0.56% (263.99% proof)
 7386!53-1 is prime! (0.0869s+0.0015s) (digits:481)
 
 Primality testing 7642!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 211
 Running N+1 test using discriminant 227, base 1+sqrt(227)
 Running N+1 test using discriminant 227, base 2+sqrt(227)
 Calling N+1 BLS with factored part 89.87% and helper 0.06% (269.74% proof)
 7642!53-1 is prime! (0.0845s+0.0030s) (digits:500)
 
 Primality testing 7809!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 181, base 1+sqrt(181)
 Running N+1 test using discriminant 181, base 2+sqrt(181)
 Calling N+1 BLS with factored part 88.05% and helper 0.06% (264.27% proof)
 7809!53-1 is prime! (0.1132s+0.0060s) (digits:512)
 
 Primality testing 7897!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 163
 Running N+1 test using discriminant 181, base 1+sqrt(181)
 Running N+1 test using discriminant 181, base 2+sqrt(181)
 Calling N+1 BLS with factored part 100.00% and helper 0.58% (300.58% proof)
 7897!53-1 is prime! (0.0835s+0.0014s) (digits:518)
 
 Primality testing 7966!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 257, base 1+sqrt(257)
 Running N+1 test using discriminant 257, base 2+sqrt(257)
 Calling N+1 BLS with factored part 88.26% and helper 0.06% (264.84% proof)
 7966!53-1 is prime! (0.1276s+0.0012s) (digits:524)
 
 Primality testing 7990!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 181
 Running N+1 test using discriminant 223, base 1+sqrt(223)
 Running N+1 test using discriminant 223, base 2+sqrt(223)
 Calling N+1 BLS with factored part 86.22% and helper 0.46% (259.24% proof)
 7990!53-1 is prime! (0.1305s+0.0013s) (digits:525)
 
 Primality testing 8034!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 181, base 1+sqrt(181)
 Running N+1 test using discriminant 181, base 2+sqrt(181)
 Calling N+1 BLS with factored part 87.57% and helper 0.06% (262.77% proof)
 8034!53-1 is prime! (0.1432s+0.0039s) (digits:529)
 
 Primality testing 8166!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 193, base 1+sqrt(193)
 Running N+1 test using discriminant 193, base 2+sqrt(193)
 Calling N+1 BLS with factored part 86.34% and helper 0.06% (259.18% proof)
 8166!53-1 is prime! (0.1188s+0.0029s) (digits:538)
 
 Primality testing 8281!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 199, base 1+sqrt(199)
 Running N+1 test using discriminant 199, base 2+sqrt(199)
 Calling N+1 BLS with factored part 85.34% and helper 0.06% (256.09% proof)
 8281!53-1 is prime! (0.1098s+0.0014s) (digits:547)
 
 Primality testing 8304!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 281, base 1+sqrt(281)
 Running N+1 test using discriminant 281, base 2+sqrt(281)
 Calling N+1 BLS with factored part 89.95% and helper 0.55% (270.44% proof)
 8304!53-1 is prime! (0.1268s+0.0038s) (digits:548)
 
 Primality testing 8323!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 211, base 1+sqrt(211)
 Running N+1 test using discriminant 211, base 2+sqrt(211)
 Calling N+1 BLS with factored part 87.94% and helper 0.05% (263.93% proof)
 8323!53-1 is prime! (0.1198s+0.0011s) (digits:550)
 
 Primality testing 8342!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 191
 Running N+1 test using discriminant 239, base 1+sqrt(239)
 Running N+1 test using discriminant 239, base 2+sqrt(239)
 Calling N+1 BLS with factored part 86.23% and helper 0.05% (258.85% proof)
 8342!53-1 is prime! (0.1096s+0.0013s) (digits:552)
 
 Primality testing 8557!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 227, base 1+sqrt(227)
 Running N+1 test using discriminant 227, base 2+sqrt(227)
 Calling N+1 BLS with factored part 88.58% and helper 0.05% (265.85% proof)
 8557!53-1 is prime! (0.1248s+0.0014s) (digits:567)
 
 Primality testing 8628!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 191, base 1+sqrt(191)
 Running N+1 test using discriminant 191, base 2+sqrt(191)
 Calling N+1 BLS with factored part 86.68% and helper 0.05% (260.19% proof)
 8628!53-1 is prime! (0.1154s+0.0032s) (digits:572)
 
 Primality testing 8701!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 181
 Running N+1 test using discriminant 211, base 1+sqrt(211)
 Running N+1 test using discriminant 211, base 2+sqrt(211)
 Calling N+1 BLS with factored part 87.28% and helper 0.05% (261.99% proof)
 8701!53-1 is prime! (0.1236s+0.0013s) (digits:578)
 
 Primality testing 8791!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 179, base 1+sqrt(179)
 Running N+1 test using discriminant 179, base 2+sqrt(179)
 Calling N+1 BLS with factored part 87.57% and helper 0.62% (263.33% proof)
 8791!53-1 is prime! (0.1265s+0.0014s) (digits:584)
 
 Primality testing 8926!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 257, base 1+sqrt(257)
 Running N+1 test using discriminant 257, base 2+sqrt(257)
 Calling N+1 BLS with factored part 90.07% and helper 0.05% (270.31% proof)
 8926!53-1 is prime! (0.1462s+0.0052s) (digits:595)
 
 Primality testing 9116!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 173
 Running N+1 test using discriminant 181, base 1+sqrt(181)
 Running N+1 test using discriminant 181, base 2+sqrt(181)
 Calling N+1 BLS with factored part 100.00% and helper 0.54% (300.59% proof)
 9116!53-1 is prime! (0.0881s+0.0015s) (digits:608)
 
 Primality testing 9275!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 191
 Running N+1 test using discriminant 197, base 1+sqrt(197)
 Running N+1 test using discriminant 197, base 3+sqrt(197)
 Calling N+1 BLS with factored part 100.00% and helper 0.49% (300.63% proof)
 9275!53-1 is prime! (0.1042s+0.0014s) (digits:620)
 
 Primality testing 9434!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 179
 Running N+1 test using discriminant 197, base 1+sqrt(197)
 Running N+1 test using discriminant 197, base 2+sqrt(197)
 Calling N+1 BLS with factored part 100.00% and helper 1.38% (301.48% proof)
 9434!53-1 is prime! (0.0905s+0.0028s) (digits:632)
 
 Primality testing 9491!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 193
 Running N+1 test using discriminant 211, base 1+sqrt(211)
 Running N+1 test using discriminant 211, base 2+sqrt(211)
 Calling N+1 BLS with factored part 85.24% and helper 0.05% (255.82% proof)
 9491!53-1 is prime! (0.1859s+0.0014s) (digits:637)
 
 Primality testing 9906!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 239, base 1+sqrt(239)
 Running N+1 test using discriminant 239, base 2+sqrt(239)
 Calling N+1 BLS with factored part 88.27% and helper 0.05% (264.85% proof)
 9906!53-1 is prime! (0.1632s+0.0013s) (digits:668)
 
 Primality testing 10287!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 271
 Running N+1 test using discriminant 281, base 1+sqrt(281)
 Running N+1 test using discriminant 281, base 3+sqrt(281)
 Calling N+1 BLS with factored part 87.16% and helper 0.04% (261.52% proof)
 10287!53-1 is prime! (0.1483s+0.0021s) (digits:697)
 
 Primality testing 10330!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 241, base 1+sqrt(241)
 Running N+1 test using discriminant 241, base 2+sqrt(241)
 Calling N+1 BLS with factored part 88.72% and helper 0.47% (266.77% proof)
 10330!53-1 is prime! (0.1815s+0.0034s) (digits:700)
 
 Primality testing 10343!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 263, base 1+sqrt(263)
 Running N+1 test using discriminant 263, base 2+sqrt(263)
 Calling N+1 BLS with factored part 86.08% and helper 0.04% (258.38% proof)
 10343!53-1 is prime! (0.1820s+0.0014s) (digits:701)
 
 Primality testing 10409!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 349, base 1+sqrt(349)
 Running N+1 test using discriminant 349, base 2+sqrt(349)
 Calling N+1 BLS with factored part 87.72% and helper 0.04% (263.28% proof)
 10409!53-1 is prime! (0.1783s+0.0013s) (digits:706)
 
 Primality testing 10417!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 271
 Running N+1 test using discriminant 331, base 1+sqrt(331)
 Running N+1 test using discriminant 331, base 2+sqrt(331)
 Calling N+1 BLS with factored part 87.30% and helper 0.04% (261.98% proof)
 10417!53-1 is prime! (0.1581s+0.0013s) (digits:707)
 
 Primality testing 10523!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 269, base 1+sqrt(269)
 Running N+1 test using discriminant 269, base 3+sqrt(269)
 Calling N+1 BLS with factored part 88.41% and helper 0.46% (265.74% proof)
 10523!53-1 is prime! (0.1782s+0.0012s) (digits:715)
 
 Primality testing 10578!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 223
 Running N+1 test using discriminant 281, base 1+sqrt(281)
 Running N+1 test using discriminant 281, base 2+sqrt(281)
 Calling N+1 BLS with factored part 88.02% and helper 0.04% (264.14% proof)
 10578!53-1 is prime! (0.1914s+0.0020s) (digits:719)
 
 Primality testing 10604!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 229
 Running N+1 test using discriminant 263, base 1+sqrt(263)
 Running N+1 test using discriminant 263, base 2+sqrt(263)
 Calling N+1 BLS with factored part 86.92% and helper 0.42% (261.26% proof)
 10604!53-1 is prime! (0.1550s+0.0012s) (digits:721)
 
 Primality testing 10652!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 239, base 1+sqrt(239)
 Running N+1 test using discriminant 239, base 2+sqrt(239)
 Calling N+1 BLS with factored part 88.56% and helper 0.37% (266.10% proof)
 10652!53-1 is prime! (0.1883s+0.0014s) (digits:724)
 
 Primality testing 10729!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 227
 Running N+1 test using discriminant 271, base 1+sqrt(271)
 Running N+1 test using discriminant 271, base 2+sqrt(271)
 Calling N+1 BLS with factored part 87.67% and helper 0.82% (263.92% proof)
 10729!53-1 is prime! (0.1712s+0.0012s) (digits:731)
 
 Primality testing 10773!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 241
 Running N+1 test using discriminant 311, base 1+sqrt(311)
 Running N+1 test using discriminant 311, base 2+sqrt(311)
 Calling N+1 BLS with factored part 90.73% and helper 0.04% (272.26% proof)
 10773!53-1 is prime! (0.1735s+0.0012s) (digits:734)
 
 Primality testing 11261!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 239, base 1+sqrt(239)
 Running N+1 test using discriminant 239, base 2+sqrt(239)
 Calling N+1 BLS with factored part 89.18% and helper 0.04% (267.62% proof)
 11261!53-1 is prime! (0.1710s+0.0014s) (digits:771)
 
 Primality testing 11311!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 277
 Running N+1 test using discriminant 313, base 1+sqrt(313)
 Running N+1 test using discriminant 313, base 2+sqrt(313)
 Calling N+1 BLS with factored part 89.04% and helper 0.04% (267.24% proof)
 11311!53-1 is prime! (0.2019s+0.0031s) (digits:775)
 
 Primality testing 11779!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 293
 Running N+1 test using discriminant 347, base 1+sqrt(347)
 Running N+1 test using discriminant 347, base 2+sqrt(347)
 Calling N+1 BLS with factored part 88.74% and helper 0.04% (266.27% proof)
 11779!53-1 is prime! (0.2089s+0.0014s) (digits:811)
 
 Primality testing 11948!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 347, base 1+sqrt(347)
 Running N+1 test using discriminant 347, base 2+sqrt(347)
 Calling N+1 BLS with factored part 88.88% and helper 0.37% (267.06% proof)
 11948!53-1 is prime! (0.2772s+0.0027s) (digits:824)
 
 Primality testing 11955!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 331, base 1+sqrt(331)
 Running N+1 test using discriminant 331, base 2+sqrt(331)
 Calling N+1 BLS with factored part 89.73% and helper 0.04% (269.24% proof)
 11955!53-1 is prime! (0.2611s+0.0014s) (digits:824)
 
 Primality testing 11997!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 293, base 1+sqrt(293)
 Running N+1 test using discriminant 293, base 2+sqrt(293)
 Calling N+1 BLS with factored part 89.23% and helper 0.04% (267.79% proof)
 11997!53-1 is prime! (0.2434s+0.0012s) (digits:828)
 
 Primality testing 12027!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 337, base 1+sqrt(337)
 Running N+1 test using discriminant 337, base 2+sqrt(337)
 Calling N+1 BLS with factored part 89.36% and helper 0.04% (268.11% proof)
 12027!53-1 is prime! (0.2884s+0.0013s) (digits:830)
 
 Primality testing 12114!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 337
 Running N+1 test using discriminant 389, base 1+sqrt(389)
 Running N+1 test using discriminant 389, base 2+sqrt(389)
 Calling N+1 BLS with factored part 90.31% and helper 0.04% (271.05% proof)
 12114!53-1 is prime! (0.2901s+0.0014s) (digits:837)
 
 Primality testing 12367!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 353, base 1+sqrt(353)
 Running N+1 test using discriminant 353, base 2+sqrt(353)
 Calling N+1 BLS with factored part 89.13% and helper 0.04% (267.50% proof)
 12367!53-1 is prime! (0.3142s+0.0011s) (digits:856)
 
 Primality testing 12457!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 263, base 1+sqrt(263)
 Running N+1 test using discriminant 263, base 2+sqrt(263)
 Calling N+1 BLS with factored part 88.76% and helper 0.38% (266.66% proof)
 12457!53-1 is prime! (0.2778s+0.0014s) (digits:863)
 
 Primality testing 12666!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 347, base 1+sqrt(347)
 Running N+1 test using discriminant 347, base 2+sqrt(347)
 Calling N+1 BLS with factored part 90.37% and helper 0.03% (271.13% proof)
 12666!53-1 is prime! (0.2693s+0.0014s) (digits:879)
 
 Primality testing 12702!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 271, base 1+sqrt(271)
 Running N+1 test using discriminant 271, base 2+sqrt(271)
 Calling N+1 BLS with factored part 88.97% and helper 0.31% (267.28% proof)
 12702!53-1 is prime! (0.2348s+0.0014s) (digits:882)
 
 Primality testing 12863!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 269
 Running N+1 test using discriminant 281, base 1+sqrt(281)
 Running N+1 test using discriminant 281, base 2+sqrt(281)
 Calling N+1 BLS with factored part 90.50% and helper 0.30% (271.88% proof)
 12863!53-1 is prime! (0.2627s+0.0013s) (digits:894)
 
 Primality testing 12917!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 347, base 1+sqrt(347)
 Running N+1 test using discriminant 347, base 2+sqrt(347)
 Calling N+1 BLS with factored part 88.40% and helper 0.03% (265.27% proof)
 12917!53-1 is prime! (0.2792s+0.0012s) (digits:899)
 
 Primality testing 13075!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 373, base 1+sqrt(373)
 Running N+1 test using discriminant 373, base 2+sqrt(373)
 Calling N+1 BLS with factored part 90.67% and helper 0.03% (272.09% proof)
 13075!53-1 is prime! (0.2824s+0.0013s) (digits:911)
 
 Primality testing 13814!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 283, base 1+sqrt(283)
 Running N+1 test using discriminant 283, base 2+sqrt(283)
 Calling N+1 BLS with factored part 89.98% and helper 0.03% (270.02% proof)
 13814!53-1 is prime! (0.2875s+0.0014s) (digits:969)
 
 Primality testing 13869!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 367, base 1+sqrt(367)
 Running N+1 test using discriminant 367, base 2+sqrt(367)
 Calling N+1 BLS with factored part 90.31% and helper 0.03% (270.95% proof)
 13869!53-1 is prime! (0.2994s+0.0014s) (digits:973)
 
 Primality testing 13879!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 431, base 1+sqrt(431)
 Running N+1 test using discriminant 431, base 2+sqrt(431)
 Calling N+1 BLS with factored part 90.87% and helper 0.03% (272.64% proof)
 13879!53-1 is prime! (0.2856s+0.0013s) (digits:973)
 
 Primality testing 14179!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 331, base 1+sqrt(331)
 Running N+1 test using discriminant 331, base 2+sqrt(331)
 Calling N+1 BLS with factored part 89.79% and helper 0.39% (269.82% proof)
 14179!53-1 is prime! (0.2828s+0.0012s) (digits:997)
 
 Primality testing 14225!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 281
 Running N+1 test using discriminant 379, base 1+sqrt(379)
 Running N+1 test using discriminant 379, base 2+sqrt(379)
 Calling N+1 BLS with factored part 90.22% and helper 0.03% (270.72% proof)
 14225!53-1 is prime! (0.3422s+0.0014s) (digits:1001)
 
 Primality testing 14557!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 283, base 1+sqrt(283)
 Running N+1 test using discriminant 283, base 2+sqrt(283)
 Calling N+1 BLS with factored part 89.26% and helper 0.03% (267.82% proof)
 14557!53-1 is prime! (0.3167s+0.0014s) (digits:1027)
 
 Primality testing 14573!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 409
 Running N+1 test using discriminant 421, base 1+sqrt(421)
 Running N+1 test using discriminant 421, base 2+sqrt(421)
 Calling N+1 BLS with factored part 89.65% and helper 0.29% (269.25% proof)
 14573!53-1 is prime! (0.3251s+0.0013s) (digits:1028)
 
 Primality testing 14814!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 373, base 1+sqrt(373)
 Running N+1 test using discriminant 373, base 2+sqrt(373)
 Calling N+1 BLS with factored part 90.97% and helper 0.03% (272.96% proof)
 14814!53-1 is prime! (0.4234s+0.0013s) (digits:1047)
 
 Primality testing 15039!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 419
 Running N+1 test using discriminant 431, base 1+sqrt(431)
 Running N+1 test using discriminant 431, base 2+sqrt(431)
 Calling N+1 BLS with factored part 90.38% and helper 0.03% (271.22% proof)
 15039!53-1 is prime! (0.4636s+0.0013s) (digits:1065)
 
 Primality testing 15799!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 379
 Running N+1 test using discriminant 419, base 1+sqrt(419)
 Running N+1 test using discriminant 419, base 2+sqrt(419)
 Calling N+1 BLS with factored part 91.19% and helper 0.03% (273.59% proof)
 15799!53-1 is prime! (0.3664s+0.0013s) (digits:1125)
 
 Primality testing 16308!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 353, base 1+sqrt(353)
 Running N+1 test using discriminant 353, base 2+sqrt(353)
 Calling N+1 BLS with factored part 90.43% and helper 0.03% (271.38% proof)
 16308!53-1 is prime! (0.4150s+0.0014s) (digits:1165)
 
 Primality testing 16786!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 439, base 1+sqrt(439)
 Running N+1 test using discriminant 439, base 2+sqrt(439)
 Calling N+1 BLS with factored part 90.11% and helper 0.03% (270.38% proof)
 16786!53-1 is prime! (0.4358s+0.0012s) (digits:1203)
 
 Primality testing 16849!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 347
 Running N+1 test using discriminant 457, base 1+sqrt(457)
 Running N+1 test using discriminant 457, base 2+sqrt(457)
 Calling N+1 BLS with factored part 91.40% and helper 0.30% (274.54% proof)
 16849!53-1 is prime! (0.4290s+0.0013s) (digits:1208)
 
 Primality testing 17741!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 431, base 1+sqrt(431)
 Running N+1 test using discriminant 431, base 2+sqrt(431)
 Calling N+1 BLS with factored part 90.56% and helper 0.02% (271.75% proof)
 17741!53-1 is prime! (0.6732s+0.0012s) (digits:1279)
 
 Primality testing 18397!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 421, base 1+sqrt(421)
 Running N+1 test using discriminant 421, base 2+sqrt(421)
 Calling N+1 BLS with factored part 90.62% and helper 0.02% (271.90% proof)
 18397!53-1 is prime! (0.5731s+0.0012s) (digits:1332)
 
 Primality testing 18478!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 457
 Running N+1 test using discriminant 569, base 1+sqrt(569)
 Running N+1 test using discriminant 569, base 2+sqrt(569)
 Calling N+1 BLS with factored part 90.08% and helper 0.02% (270.30% proof)
 18478!53-1 is prime! (0.6102s+0.0027s) (digits:1339)
 
 Primality testing 18830!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 419
 Running N+1 test using discriminant 443, base 1+sqrt(443)
 Running N+1 test using discriminant 443, base 2+sqrt(443)
 Calling N+1 BLS with factored part 90.48% and helper 0.02% (271.52% proof)
 18830!53-1 is prime! (0.5884s+0.0013s) (digits:1367)
 
 Primality testing 18925!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 367, base 1+sqrt(367)
 Running N+1 test using discriminant 367, base 2+sqrt(367)
 Calling N+1 BLS with factored part 89.46% and helper 0.02% (268.43% proof)
 18925!53-1 is prime! (0.5538s+0.0012s) (digits:1375)
 
 Primality testing 19738!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 461, base 1+sqrt(461)
 Running N+1 test using discriminant 461, base 2+sqrt(461)
 Calling N+1 BLS with factored part 90.99% and helper 0.02% (273.01% proof)
 19738!53-1 is prime! (0.6687s+0.0014s) (digits:1441)
 
 Primality testing 20346!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 457
 Running N+1 test using discriminant 541, base 1+sqrt(541)
 Running N+1 test using discriminant 541, base 2+sqrt(541)
 Calling N+1 BLS with factored part 90.76% and helper 0.02% (272.32% proof)
 20346!53-1 is prime! (0.6930s+0.0013s) (digits:1490)
 
 Primality testing 21074!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 491, base 1+sqrt(491)
 Running N+1 test using discriminant 491, base 2+sqrt(491)
 Calling N+1 BLS with factored part 90.80% and helper 0.23% (272.65% proof)
 21074!53-1 is prime! (0.6897s+0.0013s) (digits:1549)
 
 Primality testing 21497!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 431, base 1+sqrt(431)
 Running N+1 test using discriminant 431, base 2+sqrt(431)
 Calling N+1 BLS with factored part 91.67% and helper 0.23% (275.28% proof)
 21497!53-1 is prime! (0.7296s+0.0012s) (digits:1584)
 
 Primality testing 21621!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 491, base 1+sqrt(491)
 Running N+1 test using discriminant 491, base 2+sqrt(491)
 Calling N+1 BLS with factored part 92.02% and helper 0.02% (276.11% proof)
 21621!53-1 is prime! (0.7439s+0.0013s) (digits:1594)
 
 Primality testing 22527!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 571
 Running N+1 test using discriminant 613, base 1+sqrt(613)
 Running N+1 test using discriminant 613, base 2+sqrt(613)
 Calling N+1 BLS with factored part 90.85% and helper 0.02% (272.58% proof)
 22527!53-1 is prime! (0.9555s+0.0012s) (digits:1668)
 
 Primality testing 22561!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 521
 Running N+1 test using discriminant 547, base 1+sqrt(547)
 Running N+1 test using discriminant 547, base 2+sqrt(547)
 Calling N+1 BLS with factored part 90.59% and helper 0.22% (272.04% proof)
 22561!53-1 is prime! (0.9189s+0.0015s) (digits:1671)
 
 Primality testing 23025!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 487
 Running N+1 test using discriminant 547, base 1+sqrt(547)
 Running N+1 test using discriminant 547, base 2+sqrt(547)
 Calling N+1 BLS with factored part 91.28% and helper 0.02% (273.89% proof)
 23025!53-1 is prime! (1.1323s+0.0012s) (digits:1709)
 
 Primality testing 23171!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 467, base 1+sqrt(467)
 Running N+1 test using discriminant 467, base 2+sqrt(467)
 Calling N+1 BLS with factored part 91.10% and helper 0.21% (273.53% proof)
 23171!53-1 is prime! (1.0021s+0.0014s) (digits:1721)
 
 Primality testing 23363!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 487
 Running N+1 test using discriminant 593, base 1+sqrt(593)
 Running N+1 test using discriminant 593, base 2+sqrt(593)
 Calling N+1 BLS with factored part 91.59% and helper 0.02% (274.82% proof)
 23363!53-1 is prime! (0.9134s+0.0014s) (digits:1737)
 
 Primality testing 23443!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 587
 Running N+1 test using discriminant 757, base 1+sqrt(757)
 Running N+1 test using discriminant 757, base 2+sqrt(757)
 Calling N+1 BLS with factored part 90.95% and helper 0.02% (272.89% proof)
 23443!53-1 is prime! (0.9805s+0.0014s) (digits:1744)
 
 Primality testing 23656!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 499
 Running N+1 test using discriminant 521, base 1+sqrt(521)
 Running N+1 test using discriminant 521, base 2+sqrt(521)
 Calling N+1 BLS with factored part 91.52% and helper 0.17% (274.75% proof)
 23656!53-1 is prime! (0.9671s+0.0014s) (digits:1761)
 
 Primality testing 24535!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 587, base 1+sqrt(587)
 Running N+1 test using discriminant 587, base 3+sqrt(587)
 Calling N+1 BLS with factored part 91.11% and helper 0.02% (273.37% proof)
 24535!53-1 is prime! (0.9979s+0.0013s) (digits:1833)
 
 Primality testing 24664!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 571
 Running N+1 test using discriminant 691, base 1+sqrt(691)
 Running N+1 test using discriminant 691, base 2+sqrt(691)
 Calling N+1 BLS with factored part 91.40% and helper 0.02% (274.24% proof)
 24664!53-1 is prime! (1.0372s+0.0012s) (digits:1845)
 
 Primality testing 25582!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 577, base 1+sqrt(577)
 Running N+1 test using discriminant 577, base 2+sqrt(577)
 Calling N+1 BLS with factored part 90.64% and helper 0.02% (271.95% proof)
 25582!53-1 is prime! (1.0840s+0.0013s) (digits:1921)
 
 Primality testing 25922!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 607
 Running N+1 test using discriminant 631, base 1+sqrt(631)
 Running N+1 test using discriminant 631, base 2+sqrt(631)
 Calling N+1 BLS with factored part 91.78% and helper 0.02% (275.37% proof)
 25922!53-1 is prime! (1.1956s+0.0012s) (digits:1949)
 
 Primality testing 26062!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 643
 Running N+1 test using discriminant 709, base 1+sqrt(709)
 Running N+1 test using discriminant 709, base 2+sqrt(709)
 Calling N+1 BLS with factored part 91.88% and helper 0.02% (275.66% proof)
 26062!53-1 is prime! (1.0708s+0.0013s) (digits:1961)
 
 Primality testing 26189!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 523
 Running N+1 test using discriminant 563, base 1+sqrt(563)
 Running N+1 test using discriminant 563, base 2+sqrt(563)
 Calling N+1 BLS with factored part 90.80% and helper 0.02% (272.46% proof)
 26189!53-1 is prime! (1.1526s+0.0014s) (digits:1971)
 
 Primality testing 27331!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 643, base 1+sqrt(643)
 Running N+1 test using discriminant 643, base 2+sqrt(643)
 Calling N+1 BLS with factored part 91.23% and helper 0.31% (274.01% proof)
 27331!53-1 is prime! (1.1693s+0.0015s) (digits:2067)
 
 Primality testing 27788!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 601, base 1+sqrt(601)
 Running N+1 test using discriminant 601, base 2+sqrt(601)
 Calling N+1 BLS with factored part 91.98% and helper 0.33% (276.26% proof)
 27788!53-1 is prime! (1.7800s+0.0013s) (digits:2105)
 
 Primality testing 27940!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 613, base 1+sqrt(613)
 Running N+1 test using discriminant 613, base 2+sqrt(613)
 Calling N+1 BLS with factored part 93.42% and helper 0.01% (280.26% proof)
 27940!53-1 is prime! (1.7351s+0.0028s) (digits:2118)
 
 Primality testing 28330!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 641, base 1+sqrt(641)
 Running N+1 test using discriminant 641, base 2+sqrt(641)
 Calling N+1 BLS with factored part 92.12% and helper 0.20% (276.55% proof)
 28330!53-1 is prime! (1.4234s+0.0014s) (digits:2151)
 
 Primality testing 29015!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 571, base 1+sqrt(571)
 Running N+1 test using discriminant 571, base 2+sqrt(571)
 Calling N+1 BLS with factored part 91.52% and helper 0.19% (274.74% proof)
 29015!53-1 is prime! (1.5490s+0.0016s) (digits:2208)
 
 Primality testing 29260!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 773
 Running N+1 test using discriminant 823, base 1+sqrt(823)
 Running N+1 test using discriminant 823, base 2+sqrt(823)
 Calling N+1 BLS with factored part 92.35% and helper 0.01% (277.07% proof)
 29260!53-1 is prime! (1.6427s+0.0013s) (digits:2229)
 
 Primality testing 29645!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 643
 Running N+1 test using discriminant 683, base 1+sqrt(683)
 Running N+1 test using discriminant 683, base 2+sqrt(683)
 Calling N+1 BLS with factored part 92.28% and helper 0.01% (276.87% proof)
 29645!53-1 is prime! (1.6613s+0.0014s) (digits:2261)
 
 Primality testing 30061!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 631, base 1+sqrt(631)
 Running N+1 test using discriminant 631, base 2+sqrt(631)
 Calling N+1 BLS with factored part 92.75% and helper 0.01% (278.29% proof)
 30061!53-1 is prime! (1.6845s+0.0022s) (digits:2297)
 
 Primality testing 30585!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 617, base 1+sqrt(617)
 Running N+1 test using discriminant 617, base 2+sqrt(617)
 Calling N+1 BLS with factored part 92.86% and helper 0.17% (278.75% proof)
 30585!53-1 is prime! (1.6867s+0.0014s) (digits:2341)
 
 Primality testing 30884!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 757, base 1+sqrt(757)
 Running N+1 test using discriminant 757, base 2+sqrt(757)
 Calling N+1 BLS with factored part 92.57% and helper 0.01% (277.74% proof)
 30884!53-1 is prime! (1.7608s+0.0015s) (digits:2366)
 
 Primality testing 31320!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 743, base 2+sqrt(743)
 Running N+1 test using discriminant 743, base 3+sqrt(743)
 Calling N+1 BLS with factored part 92.84% and helper 0.16% (278.73% proof)
 31320!53-1 is prime! (2.2054s+0.0016s) (digits:2402)
 
 Primality testing 32320!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 641
 Running N+1 test using discriminant 877, base 1+sqrt(877)
 Running N+1 test using discriminant 877, base 2+sqrt(877)
 Calling N+1 BLS with factored part 92.04% and helper 0.01% (276.14% proof)
 32320!53-1 is prime! (2.5604s+0.0015s) (digits:2488)
 
 Primality testing 32671!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 769, base 1+sqrt(769)
 Running N+1 test using discriminant 769, base 2+sqrt(769)
 Calling N+1 BLS with factored part 91.92% and helper 0.01% (275.78% proof)
 32671!53-1 is prime! (2.4997s+0.0016s) (digits:2518)
 
 Primality testing 33091!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 653, base 1+sqrt(653)
 Running N+1 test using discriminant 653, base 2+sqrt(653)
 Calling N+1 BLS with factored part 92.77% and helper 0.01% (278.35% proof)
 33091!53-1 is prime! (2.3186s+0.0014s) (digits:2554)
 
 Primality testing 35692!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 719, base 1+sqrt(719)
 Running N+1 test using discriminant 719, base 2+sqrt(719)
 Calling N+1 BLS with factored part 92.44% and helper 0.23% (277.57% proof)
 35692!53-1 is prime! (2.5341s+0.0016s) (digits:2776)
 
 Primality testing 37516!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 797
 Running N+1 test using discriminant 937, base 1+sqrt(937)
 Running N+1 test using discriminant 937, base 2+sqrt(937)
 Calling N+1 BLS with factored part 93.42% and helper 0.13% (280.41% proof)
 37516!53-1 is prime! (2.9721s+0.0014s) (digits:2933)
 
 Primality testing 38513!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 857
 Running N+1 test using discriminant 977, base 1+sqrt(977)
 Running N+1 test using discriminant 977, base 2+sqrt(977)
 Calling N+1 BLS with factored part 92.02% and helper 0.01% (276.09% proof)
 38513!53-1 is prime! (2.9180s+0.0014s) (digits:3019)
 
 Primality testing 39610!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 829, base 1+sqrt(829)
 Running N+1 test using discriminant 829, base 2+sqrt(829)
 Calling N+1 BLS with factored part 93.34% and helper 0.01% (280.05% proof)
 39610!53-1 is prime! (3.1483s+0.0017s) (digits:3115)
 
 Primality testing 40366!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 983, base 1+sqrt(983)
 Running N+1 test using discriminant 983, base 2+sqrt(983)
 Calling N+1 BLS with factored part 91.93% and helper 0.01% (275.83% proof)
 40366!53-1 is prime! (3.0691s+0.0017s) (digits:3180)
 
 Primality testing 40505!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 911
 Running N+1 test using discriminant 937, base 1+sqrt(937)
 Running N+1 test using discriminant 937, base 2+sqrt(937)
 Calling N+1 BLS with factored part 92.66% and helper 0.01% (278.00% proof)
 40505!53-1 is prime! (3.1290s+0.0017s) (digits:3192)
 
 Primality testing 41085!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 827, base 1+sqrt(827)
 Running N+1 test using discriminant 827, base 2+sqrt(827)
 Calling N+1 BLS with factored part 93.19% and helper 0.01% (279.59% proof)
 41085!53-1 is prime! (4.6493s+0.0017s) (digits:3243)
 
 Primality testing 41723!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 941
 Running N+1 test using discriminant 1163, base 1+sqrt(1163)
 Running N+1 test using discriminant 1163, base 2+sqrt(1163)
 Calling N+1 BLS with factored part 93.13% and helper 0.01% (279.39% proof)
 41723!53-1 is prime! (4.6863s+0.0016s) (digits:3298)
 
 Primality testing 41776!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1097
 Running N+1 test using discriminant 1289, base 1+sqrt(1289)
 Running N+1 test using discriminant 1289, base 2+sqrt(1289)
 Calling N+1 BLS with factored part 93.14% and helper 0.01% (279.43% proof)
 41776!53-1 is prime! (4.6921s+0.0015s) (digits:3303)
 
 Primality testing 42637!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 823
 Running N+1 test using discriminant 1021, base 1+sqrt(1021)
 Running N+1 test using discriminant 1021, base 2+sqrt(1021)
 Calling N+1 BLS with factored part 92.24% and helper 0.01% (276.72% proof)
 42637!53-1 is prime! (4.6866s+0.0013s) (digits:3378)
 
 Primality testing 42778!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 947, base 1+sqrt(947)
 Running N+1 test using discriminant 947, base 2+sqrt(947)
 Calling N+1 BLS with factored part 92.79% and helper 0.01% (278.39% proof)
 42778!53-1 is prime! (4.7084s+0.0016s) (digits:3390)
 
 Primality testing 42806!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 857
 Running N+1 test using discriminant 947, base 1+sqrt(947)
 Running N+1 test using discriminant 947, base 2+sqrt(947)
 Calling N+1 BLS with factored part 92.70% and helper 0.01% (278.12% proof)
 42806!53-1 is prime! (4.7989s+0.0015s) (digits:3393)
 
 Primality testing 42930!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 811
 Running N+1 test using discriminant 827, base 1+sqrt(827)
 Running N+1 test using discriminant 827, base 2+sqrt(827)
 Calling N+1 BLS with factored part 100.00% and helper 0.01% (300.01% proof)
 42930!53-1 is prime! (2.2527s+0.0015s) (digits:3403)
 
 Primality testing 43073!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 1103, base 1+sqrt(1103)
 Running N+1 test using discriminant 1103, base 2+sqrt(1103)
 Calling N+1 BLS with factored part 92.05% and helper 0.01% (276.18% proof)
 43073!53-1 is prime! (3.9813s+0.0014s) (digits:3416)
 
 Primality testing 43879!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 983, base 1+sqrt(983)
 Running N+1 test using discriminant 983, base 2+sqrt(983)
 Calling N+1 BLS with factored part 92.00% and helper 0.01% (276.02% proof)
 43879!53-1 is prime! (4.0281s+0.0017s) (digits:3486)
 
 Primality testing 44247!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1009
 Running N+1 test using discriminant 1061, base 1+sqrt(1061)
 Running N+1 test using discriminant 1061, base 2+sqrt(1061)
 Calling N+1 BLS with factored part 93.54% and helper 0.12% (280.75% proof)
 44247!53-1 is prime! (4.3160s+0.0017s) (digits:3519)
 
 Primality testing 45163!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 947, base 1+sqrt(947)
 Running N+1 test using discriminant 947, base 2+sqrt(947)
 Calling N+1 BLS with factored part 92.80% and helper 0.01% (278.40% proof)
 45163!53-1 is prime! (4.3496s+0.0016s) (digits:3599)
 
 Primality testing 45203!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 907, base 1+sqrt(907)
 Running N+1 test using discriminant 907, base 2+sqrt(907)
 Calling N+1 BLS with factored part 92.69% and helper 0.11% (278.17% proof)
 45203!53-1 is prime! (4.2176s+0.0015s) (digits:3602)
 
 Primality testing 46784!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1097
 Running N+1 test using discriminant 1153, base 1+sqrt(1153)
 Running N+1 test using discriminant 1153, base 2+sqrt(1153)
 Calling N+1 BLS with factored part 94.14% and helper 0.01% (282.45% proof)
 46784!53-1 is prime! (4.8696s+0.0017s) (digits:3742)
 
 Primality testing 47038!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 967
 Running N+1 test using discriminant 1033, base 1+sqrt(1033)
 Running N+1 test using discriminant 1033, base 2+sqrt(1033)
 Calling N+1 BLS with factored part 92.84% and helper 0.01% (278.54% proof)
 47038!53-1 is prime! (4.7770s+0.0016s) (digits:3764)
 
 Primality testing 47264!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1009
 Running N+1 test using discriminant 1019, base 1+sqrt(1019)
 Running N+1 test using discriminant 1019, base 2+sqrt(1019)
 Calling N+1 BLS with factored part 93.48% and helper 0.01% (280.47% proof)
 47264!53-1 is prime! (4.8070s+0.0018s) (digits:3784)
 
 Primality testing 50463!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1151
 Running N+1 test using discriminant 1283, base 1+sqrt(1283)
 Running N+1 test using discriminant 1283, base 2+sqrt(1283)
 Calling N+1 BLS with factored part 93.44% and helper 0.01% (280.34% proof)
 50463!53-1 is prime! (7.3135s+0.0019s) (digits:4067)
 
 Primality testing 50805!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 1039, base 1+sqrt(1039)
 Running N+1 test using discriminant 1039, base 2+sqrt(1039)
 Calling N+1 BLS with factored part 93.27% and helper 0.09% (279.90% proof)
 50805!53-1 is prime! (7.1145s+0.0018s) (digits:4098)
 
 Primality testing 51471!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1171
 Running N+1 test using discriminant 1217, base 1+sqrt(1217)
 Running N+1 test using discriminant 1217, base 2+sqrt(1217)
 Calling N+1 BLS with factored part 93.46% and helper 0.01% (280.39% proof)
 51471!53-1 is prime! (7.3882s+0.0017s) (digits:4157)
 
 Primality testing 52159!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1093
 Running N+1 test using discriminant 1291, base 1+sqrt(1291)
 Running N+1 test using discriminant 1291, base 2+sqrt(1291)
 Calling N+1 BLS with factored part 93.45% and helper 0.01% (280.38% proof)
 52159!53-1 is prime! (7.6444s+0.0018s) (digits:4218)
 
 Primality testing 53277!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1109
 Running N+1 test using discriminant 1163, base 1+sqrt(1163)
 Running N+1 test using discriminant 1163, base 2+sqrt(1163)
 Calling N+1 BLS with factored part 93.03% and helper 0.01% (279.12% proof)
 53277!53-1 is prime! (7.1213s+0.0018s) (digits:4318)
 
 Primality testing 53410!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 1153, base 1+sqrt(1153)
 Running N+1 test using discriminant 1153, base 2+sqrt(1153)
 Calling N+1 BLS with factored part 94.08% and helper 0.01% (282.26% proof)
 53410!53-1 is prime! (7.1648s+0.0018s) (digits:4329)
 
 Primality testing 53639!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 1229, base 1+sqrt(1229)
 Running N+1 test using discriminant 1229, base 2+sqrt(1229)
 Calling N+1 BLS with factored part 93.70% and helper 0.01% (281.12% proof)
 53639!53-1 is prime! (6.9940s+0.0024s) (digits:4350)
 
 Primality testing 54728!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 1249, base 1+sqrt(1249)
 Running N+1 test using discriminant 1249, base 2+sqrt(1249)
 Calling N+1 BLS with factored part 93.35% and helper 0.08% (280.14% proof)
 54728!53-1 is prime! (7.2307s+0.0024s) (digits:4447)
 
 Primality testing 56304!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1279
 Running N+1 test using discriminant 1307, base 1+sqrt(1307)
 Running N+1 test using discriminant 1307, base 2+sqrt(1307)
 Calling N+1 BLS with factored part 93.30% and helper 0.01% (279.91% proof)
 56304!53-1 is prime! (7.4654s+0.0028s) (digits:4588)
 
 Primality testing 56588!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1129
 Running N+1 test using discriminant 1201, base 1+sqrt(1201)
 Running N+1 test using discriminant 1201, base 2+sqrt(1201)
 Calling N+1 BLS with factored part 93.93% and helper 0.01% (281.80% proof)
 56588!53-1 is prime! (7.5178s+0.0023s) (digits:4614)
 
 Primality testing 56954!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1187
 Running N+1 test using discriminant 1279, base 1+sqrt(1279)
 Running N+1 test using discriminant 1279, base 2+sqrt(1279)
 Calling N+1 BLS with factored part 93.81% and helper 0.10% (281.53% proof)
 56954!53-1 is prime! (7.6426s+0.0025s) (digits:4647)
 
 Primality testing 59522!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 1481, base 1+sqrt(1481)
 Running N+1 test using discriminant 1481, base 2+sqrt(1481)
 Calling N+1 BLS with factored part 93.68% and helper 0.01% (281.04% proof)
 59522!53-1 is prime! (11.2364s+0.0026s) (digits:4877)
 
 Primality testing 59887!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1459
 Running N+1 test using discriminant 1511, base 1+sqrt(1511)
 Running N+1 test using discriminant 1511, base 2+sqrt(1511)
 Calling N+1 BLS with factored part 93.73% and helper 0.01% (281.19% proof)
 59887!53-1 is prime! (11.5864s+0.0022s) (digits:4910)
 
 Primality testing 61483!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1297
 Running N+1 test using discriminant 1489, base 1+sqrt(1489)
 Running N+1 test using discriminant 1489, base 2+sqrt(1489)
 Calling N+1 BLS with factored part 93.69% and helper 0.01% (281.09% proof)
 61483!53-1 is prime! (11.8749s+0.0020s) (digits:5054)
 
 Primality testing 62113!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1381
 Running N+1 test using discriminant 1439, base 1+sqrt(1439)
 Running N+1 test using discriminant 1439, base 2+sqrt(1439)
 Calling N+1 BLS with factored part 93.96% and helper 0.07% (281.96% proof)
 62113!53-1 is prime! (11.0190s+0.0021s) (digits:5111)
 
 Primality testing 64452!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1321
 Running N+1 test using discriminant 1409, base 1+sqrt(1409)
 Running N+1 test using discriminant 1409, base 2+sqrt(1409)
 Calling N+1 BLS with factored part 93.63% and helper 0.01% (280.89% proof)
 64452!53-1 is prime! (11.6263s+0.0021s) (digits:5323)
 
 Primality testing 66845!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1319
 Running N+1 test using discriminant 1429, base 1+sqrt(1429)
 Running N+1 test using discriminant 1429, base 2+sqrt(1429)
 Calling N+1 BLS with factored part 93.53% and helper 0.01% (280.60% proof)
 66845!53-1 is prime! (12.3667s+0.0021s) (digits:5541)
 
 Primality testing 67641!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 1471, base 1+sqrt(1471)
 Running N+1 test using discriminant 1471, base 2+sqrt(1471)
 Calling N+1 BLS with factored part 93.86% and helper 0.01% (281.61% proof)
 67641!53-1 is prime! (12.5066s+0.0024s) (digits:5613)
 
 Primality testing 68817!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1489
 Running N+1 test using discriminant 1511, base 1+sqrt(1511)
 Running N+1 test using discriminant 1511, base 2+sqrt(1511)
 Calling N+1 BLS with factored part 94.12% and helper 0.01% (282.35% proof)
 68817!53-1 is prime! (12.9734s+0.0022s) (digits:5721)
 
 Primality testing 69555!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1459
 Running N+1 test using discriminant 1571, base 1+sqrt(1571)
 Running N+1 test using discriminant 1571, base 2+sqrt(1571)
 Calling N+1 BLS with factored part 94.43% and helper 0.01% (283.30% proof)
 69555!53-1 is prime! (13.3107s+0.0025s) (digits:5788)
 
 Primality testing 69805!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 1427, base 1+sqrt(1427)
 Running N+1 test using discriminant 1427, base 2+sqrt(1427)
 Calling N+1 BLS with factored part 94.02% and helper 0.01% (282.06% proof)
 69805!53-1 is prime! (12.8317s+0.0022s) (digits:5811)
 
 Primality testing 69976!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 1627, base 1+sqrt(1627)
 Running N+1 test using discriminant 1627, base 2+sqrt(1627)
 Calling N+1 BLS with factored part 95.10% and helper 0.07% (285.37% proof)
 69976!53-1 is prime! (13.4778s+0.0024s) (digits:5827)
 
 Primality testing 70899!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 1487, base 1+sqrt(1487)
 Running N+1 test using discriminant 1487, base 2+sqrt(1487)
 Calling N+1 BLS with factored part 94.35% and helper 0.07% (283.12% proof)
 70899!53-1 is prime! (12.9825s+0.0017s) (digits:5911)
 
 Primality testing 71008!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 1549, base 1+sqrt(1549)
 Running N+1 test using discriminant 1549, base 2+sqrt(1549)
 Calling N+1 BLS with factored part 93.90% and helper 0.07% (281.77% proof)
 71008!53-1 is prime! (13.2301s+0.0025s) (digits:5921)
 
 Primality testing 71781!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 1607, base 1+sqrt(1607)
 Running N+1 test using discriminant 1607, base 2+sqrt(1607)
 Calling N+1 BLS with factored part 94.14% and helper 0.01% (282.41% proof)
 71781!53-1 is prime! (13.3396s+0.0031s) (digits:5992)
 
 Primality testing 71894!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1471
 Running N+1 test using discriminant 1553, base 1+sqrt(1553)
 Running N+1 test using discriminant 1553, base 2+sqrt(1553)
 Calling N+1 BLS with factored part 94.22% and helper 0.07% (282.74% proof)
 71894!53-1 is prime! (13.7098s+0.0034s) (digits:6002)
 
 Primality testing 72942!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 1523, base 1+sqrt(1523)
 Running N+1 test using discriminant 1523, base 2+sqrt(1523)
 Calling N+1 BLS with factored part 93.74% and helper 0.00% (281.23% proof)
 72942!53-1 is prime! (13.2574s+0.0026s) (digits:6098)
 
 Primality testing 74792!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 1559, base 1+sqrt(1559)
 Running N+1 test using discriminant 1559, base 2+sqrt(1559)
 Calling N+1 BLS with factored part 93.69% and helper 0.00% (281.07% proof)
 74792!53-1 is prime! (14.1376s+0.0029s) (digits:6268)
 
 Primality testing 76543!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1579
 Running N+1 test using discriminant 1657, base 1+sqrt(1657)
 Running N+1 test using discriminant 1657, base 2+sqrt(1657)
 Calling N+1 BLS with factored part 94.40% and helper 0.00% (283.22% proof)
 76543!53-1 is prime! (15.1210s+0.0035s) (digits:6429)
 
 Primality testing 81245!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 1753, base 1+sqrt(1753)
 Running N+1 test using discriminant 1753, base 3+sqrt(1753)
 Calling N+1 BLS with factored part 94.24% and helper 0.00% (282.71% proof)
 81245!53-1 is prime! (20.0476s+0.0027s) (digits:6863)
 
 Primality testing 83433!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1733
 Running N+1 test using discriminant 1823, base 1+sqrt(1823)
 Running N+1 test using discriminant 1823, base 2+sqrt(1823)
 Calling N+1 BLS with factored part 94.39% and helper 0.06% (283.23% proof)
 83433!53-1 is prime! (21.2283s+0.0029s) (digits:7067)
 
 Primality testing 84099!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1753
 Running N+1 test using discriminant 1973, base 1+sqrt(1973)
 Running N+1 test using discriminant 1973, base 2+sqrt(1973)
 Calling N+1 BLS with factored part 94.46% and helper 0.00% (283.38% proof)
 84099!53-1 is prime! (21.6014s+0.0028s) (digits:7128)
 
 Primality testing 84183!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 1777, base 1+sqrt(1777)
 Running N+1 test using discriminant 1777, base 2+sqrt(1777)
 Calling N+1 BLS with factored part 95.11% and helper 0.00% (285.36% proof)
 84183!53-1 is prime! (21.5072s+0.0028s) (digits:7136)
 
 Primality testing 85738!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 1753, base 1+sqrt(1753)
 Running N+1 test using discriminant 1753, base 3+sqrt(1753)
 Calling N+1 BLS with factored part 94.62% and helper 0.00% (283.85% proof)
 85738!53-1 is prime! (21.6275s+0.0030s) (digits:7281)
 
 Primality testing 86262!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1877
 Running N+1 test using discriminant 1987, base 1+sqrt(1987)
 Running N+1 test using discriminant 1987, base 2+sqrt(1987)
 Calling N+1 BLS with factored part 94.39% and helper 0.10% (283.26% proof)
 86262!53-1 is prime! (22.1408s+0.0028s) (digits:7330)
 
 Primality testing 86499!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1693
 Running N+1 test using discriminant 1721, base 1+sqrt(1721)
 Running N+1 test using discriminant 1721, base 2+sqrt(1721)
 Calling N+1 BLS with factored part 94.52% and helper 0.00% (283.57% proof)
 86499!53-1 is prime! (22.3718s+0.0032s) (digits:7352)
 
 Primality testing 86556!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1787
 Running N+1 test using discriminant 1931, base 1+sqrt(1931)
 Running N+1 test using discriminant 1931, base 2+sqrt(1931)
 Calling N+1 BLS with factored part 94.79% and helper 0.00% (284.39% proof)
 86556!53-1 is prime! (22.1935s+0.0027s) (digits:7357)
 
 Primality testing 88526!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 1733, base 1+sqrt(1733)
 Running N+1 test using discriminant 1733, base 2+sqrt(1733)
 Calling N+1 BLS with factored part 94.77% and helper 0.00% (284.33% proof)
 88526!53-1 is prime! (22.8326s+0.0037s) (digits:7541)
 
 Primality testing 90588!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 1823, base 1+sqrt(1823)
 Running N+1 test using discriminant 1823, base 2+sqrt(1823)
 Calling N+1 BLS with factored part 94.65% and helper 0.00% (283.96% proof)
 90588!53-1 is prime! (22.5573s+0.0035s) (digits:7734)
 
 Primality testing 92459!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 2027, base 1+sqrt(2027)
 Running N+1 test using discriminant 2027, base 2+sqrt(2027)
 Calling N+1 BLS with factored part 94.82% and helper 0.00% (284.46% proof)
 92459!53-1 is prime! (23.9134s+0.0034s) (digits:7909)
 
 Primality testing 92557!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1889
 Running N+1 test using discriminant 2087, base 1+sqrt(2087)
 Running N+1 test using discriminant 2087, base 2+sqrt(2087)
 Calling N+1 BLS with factored part 95.08% and helper 0.05% (285.29% proof)
 92557!53-1 is prime! (24.0802s+0.0031s) (digits:7918)
 
 Primality testing 93594!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 2069
 Running N+1 test using discriminant 2281, base 1+sqrt(2281)
 Running N+1 test using discriminant 2281, base 2+sqrt(2281)
 Calling N+1 BLS with factored part 94.58% and helper 0.00% (283.74% proof)
 93594!53-1 is prime! (24.5922s+0.0040s) (digits:8015)
 
 Primality testing 95330!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 1949, base 1+sqrt(1949)
 Running N+1 test using discriminant 1949, base 2+sqrt(1949)
 Calling N+1 BLS with factored part 95.26% and helper 0.00% (285.80% proof)
 95330!53-1 is prime! (33.2288s+0.0032s) (digits:8178)
 
 Primality testing 98216!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1901
 Running N+1 test using discriminant 1931, base 1+sqrt(1931)
 Running N+1 test using discriminant 1931, base 2+sqrt(1931)
 Calling N+1 BLS with factored part 94.94% and helper 0.00% (284.82% proof)
 98216!53-1 is prime! (31.6784s+0.0033s) (digits:8450)
 
 Primality testing 99751!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 2083, base 1+sqrt(2083)
 Running N+1 test using discriminant 2083, base 2+sqrt(2083)
 Calling N+1 BLS with factored part 95.43% and helper 0.00% (286.30% proof)
 99751!53-1 is prime! (30.9056s+0.0035s) (digits:8594)
 
 Primality testing 100965!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1933
 Running N+1 test using discriminant 1973, base 1+sqrt(1973)
 Running N+1 test using discriminant 1973, base 2+sqrt(1973)
 Calling N+1 BLS with factored part 100.00% and helper 0.00% (300.00% proof)
 100965!53-1 is prime! (15.3427s+0.0034s) (digits:8708)
 
 Primality testing 105299!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 2179, base 1+sqrt(2179)
 Running N+1 test using discriminant 2179, base 2+sqrt(2179)
 Calling N+1 BLS with factored part 94.86% and helper 0.00% (284.59% proof)
 105299!53-1 is prime! (30.8368s+0.0028s) (digits:9118)
 
 Primality testing 106347!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 2179
 Running N+1 test using discriminant 2287, base 1+sqrt(2287)
 Running N+1 test using discriminant 2287, base 2+sqrt(2287)
 Calling N+1 BLS with factored part 94.38% and helper 0.00% (283.14% proof)
 106347!53-1 is prime! (28.3106s+0.0024s) (digits:9218)
 
 Primality testing 108939!53-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 53
 Running N+1 test using discriminant 2273, base 1+sqrt(2273)
 Running N+1 test using discriminant 2273, base 2+sqrt(2273)
 Calling N+1 BLS with factored part 95.44% and helper 0.00% (286.33% proof)
 108939!53-1 is prime! (24.9298s+0.0024s) (digits:9464)