24!21-1 trivially factors prime!: 71 (digits:2)
 30!21-1 trivially factors prime!: 269 (digits:3)
 39!21-1 trivially factors prime!: 701 (digits:3)
 42!21-1 trivially factors prime!: 881 (digits:3)
 54!21-1 trivially factors prime!: 21383 (digits:5)
 59!21-1 trivially factors prime!: 38113 (digits:5)
 62!21-1 trivially factors prime!: 50839 (digits:5)
 75!21-1 trivially factors prime!: 1603799 (digits:7)
 81!21-1 trivially factors prime!: 3411719 (digits:7)
 95!21-1 trivially factors prime!: 131151679 (digits:9)
 
 Primality testing 129!21-1 [N-1, Brillhart-Lehmer-Selfridge]
 small number, factored prime!
 129!21-1 is prime! (0.0192s+0.0007s) (digits:12)
 
 Primality testing 135!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 7
 Running N-1 test using base 11
 Running N+1 test using discriminant 43, base 3+sqrt(43)
 Running N+1 test using discriminant 43, base 4+sqrt(43)
 Calling N+1 BLS with factored part 100.00% and helper 7.50% (310.00% proof)
 135!21-1 is prime! (0.0704s+0.0012s) (digits:13)
 
 Primality testing 140!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N+1 test using discriminant 19, base 1+sqrt(19)
 Running N+1 test using discriminant 19, base 3+sqrt(19)
 Calling N+1 BLS with factored part 100.00% and helper 14.63% (319.51% proof)
 140!21-1 is prime! (0.0686s+0.0017s) (digits:13)
 
 Primality testing 174!21-1 [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 1.85% (301.85% proof)
 174!21-1 is prime! (0.0177s+0.0127s) (digits:17)
 
 Primality testing 215!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N+1 test using discriminant 7, base 8+sqrt(7)
 Running N+1 test using discriminant 7, base 9+sqrt(7)
 Calling N+1 BLS with factored part 100.00% and helper 17.65% (322.06% proof)
 215!21-1 is prime! (0.0696s+0.0020s) (digits:21)
 
 Primality testing 318!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 31
 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 0.93% (301.85% proof)
 318!21-1 is prime! (0.0123s+0.0016s) (digits:33)
 
 Primality testing 345!21-1 [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 6.72% (307.56% proof)
 345!21-1 is prime! (0.0115s+0.0009s) (digits:37)
 
 Primality testing 353!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N+1 test using discriminant 7, base 8+sqrt(7)
 Running N+1 test using discriminant 7, base 10+sqrt(7)
 Calling N+1 BLS with factored part 100.00% and helper 3.28% (303.28% proof)
 353!21-1 is prime! (0.0137s+0.0032s) (digits:37)
 
 Primality testing 396!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 29
 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 0.72% (301.44% proof)
 396!21-1 is prime! (0.0129s+0.0012s) (digits:42)
 
 Primality testing 408!21-1 [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 0.69% (301.38% proof)
 408!21-1 is prime! (0.0144s+0.0405s) (digits:44)
 
 Primality testing 417!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 7
 Running N+1 test using discriminant 29, base 2+sqrt(29)
 Running N+1 test using discriminant 29, base 3+sqrt(29)
 Calling N+1 BLS with factored part 100.00% and helper 2.03% (302.70% proof)
 417!21-1 is prime! (0.0128s+0.0020s) (digits:45)
 
 Primality testing 648!21-1 [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 0.40% (301.21% proof)
 648!21-1 is prime! (0.0133s+0.0016s) (digits:75)
 
 Primality testing 983!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N-1 test using base 7
 Running N-1 test using base 97
 Running N-1 test using base 107
 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 100.00% and helper 1.24% (301.74% proof)
 983!21-1 is prime! (0.0345s+0.0010s) (digits:122)
 
 Primality testing 1056!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 61
 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 100.00% and helper 1.60% (301.83% proof)
 1056!21-1 is prime! (0.0232s+0.0019s) (digits:132)
 
 Primality testing 1299!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 7
 Running N+1 test using discriminant 113, base 2+sqrt(113)
 Running N+1 test using discriminant 113, base 3+sqrt(113)
 Calling N+1 BLS with factored part 100.00% and helper 0.54% (300.72% proof)
 1299!21-1 is prime! (0.0271s+0.0014s) (digits:168)
 
 Primality testing 1319!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N+1 test using discriminant 109, base 3+sqrt(109)
 Running N+1 test using discriminant 109, base 6+sqrt(109)
 Calling N+1 BLS with factored part 100.00% and helper 0.35% (300.53% proof)
 1319!21-1 is prime! (0.0356s+0.0019s) (digits:171)
 
 Primality testing 1431!21-1 [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 1.77% (301.93% proof)
 1431!21-1 is prime! (0.0342s+0.0014s) (digits:188)
 
 Primality testing 1568!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N+1 test using discriminant 127, base 1+sqrt(127)
 Running N+1 test using discriminant 127, base 3+sqrt(127)
 Calling N+1 BLS with factored part 100.00% and helper 0.29% (300.43% proof)
 1568!21-1 is prime! (0.0375s+0.0018s) (digits:208)
 
 Primality testing 1605!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 137
 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 100.00% and helper 1.55% (301.69% proof)
 1605!21-1 is prime! (0.0373s+0.0020s) (digits:214)
 
 Primality testing 1719!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 173
 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 100.00% and helper 0.13% (300.26% proof)
 1719!21-1 is prime! (0.0449s+0.0018s) (digits:231)
 
 Primality testing 2495!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N+1 test using discriminant 7, base 8+sqrt(7)
 Running N+1 test using discriminant 7, base 10+sqrt(7)
 Calling N+1 BLS with factored part 98.13% and helper 0.43% (294.89% proof)
 2495!21-1 is prime! (0.0812s+0.0051s) (digits:354)
 
 Primality testing 3693!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 7
 Running N+1 test using discriminant 211, base 2+sqrt(211)
 Running N+1 test using discriminant 211, base 3+sqrt(211)
 Calling N+1 BLS with factored part 100.00% and helper 0.16% (300.33% proof)
 3693!21-1 is prime! (0.1330s+0.0019s) (digits:553)
 
 Primality testing 3710!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N-1 test using base 271
 Running N+1 test using discriminant 337, base 2+sqrt(337)
 Running N+1 test using discriminant 337, base 3+sqrt(337)
 Calling N+1 BLS with factored part 100.00% and helper 0.65% (300.81% proof)
 3710!21-1 is prime! (0.1230s+0.0017s) (digits:556)
 
 Primality testing 4205!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N-1 test using base 239
 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 93.89% and helper 0.09% (281.81% proof)
 4205!21-1 is prime! (0.2211s+0.0024s) (digits:641)
 
 Primality testing 4541!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N+1 test using discriminant 7, base 8+sqrt(7)
 Running N+1 test using discriminant 7, base 10+sqrt(7)
 Calling N+1 BLS with factored part 93.36% and helper 0.09% (280.22% proof)
 4541!21-1 is prime! (0.2229s+0.0020s) (digits:699)
 
 Primality testing 4710!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 271
 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 100.00% and helper 0.41% (300.50% proof)
 4710!21-1 is prime! (0.2072s+0.0019s) (digits:729)
 
 Primality testing 4758!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 7
 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 100.00% and helper 0.41% (300.49% proof)
 4758!21-1 is prime! (0.1931s+0.0017s) (digits:737)
 
 Primality testing 4790!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N+1 test using discriminant 7, base 8+sqrt(7)
 Running N+1 test using discriminant 7, base 10+sqrt(7)
 Calling N+1 BLS with factored part 93.67% and helper 0.37% (281.50% proof)
 4790!21-1 is prime! (0.2434s+0.0015s) (digits:743)
 
 Primality testing 4919!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N-1 test using base 7
 Running N+1 test using discriminant 331, base 5+sqrt(331)
 Running N+1 test using discriminant 331, base 6+sqrt(331)
 Calling N+1 BLS with factored part 93.35% and helper 0.08% (280.24% proof)
 4919!21-1 is prime! (0.2784s+0.0015s) (digits:766)
 
 Primality testing 6554!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N+1 test using discriminant 7, base 8+sqrt(7)
 Running N+1 test using discriminant 7, base 10+sqrt(7)
 Calling N+1 BLS with factored part 93.25% and helper 0.26% (280.07% proof)
 6554!21-1 is prime! (0.4869s+0.0016s) (digits:1058)
 
 Primality testing 8211!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 397
 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 100.00% and helper 0.02% (300.07% proof)
 8211!21-1 is prime! (0.3357s+0.0013s) (digits:1363)
 
 Primality testing 8705!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N-1 test using base 467
 Running N-1 test using base 569
 Running N+1 test using discriminant 619, base 3+sqrt(619)
 Running N+1 test using discriminant 619, base 4+sqrt(619)
 Calling N+1 BLS with factored part 96.50% and helper 0.58% (290.15% proof)
 8705!21-1 is prime! (0.9562s+0.0017s) (digits:1456)
 
 Primality testing 8883!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 431
 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 100.00% and helper 0.18% (300.24% proof)
 8883!21-1 is prime! (0.3905s+0.0021s) (digits:1489)
 
 Primality testing 11813!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N-1 test using base 7
 Running N+1 test using discriminant 661, base 2+sqrt(661)
 Running N+1 test using discriminant 661, base 3+sqrt(661)
 Calling N+1 BLS with factored part 97.83% and helper 0.12% (293.62% proof)
 11813!21-1 is prime! (1.5962s+0.0015s) (digits:2049)
 
 Primality testing 12911!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N-1 test using base 739
 Running N+1 test using discriminant 821, base 1+sqrt(821)
 Running N+1 test using discriminant 821, base 2+sqrt(821)
 Calling N+1 BLS with factored part 97.47% and helper 0.03% (292.47% proof)
 12911!21-1 is prime! (2.2136s+0.0014s) (digits:2263)
 
 Primality testing 14088!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 7
 Running N+1 test using discriminant 827, base 2+sqrt(827)
 Running N+1 test using discriminant 827, base 3+sqrt(827)
 Calling N+1 BLS with factored part 100.00% and helper 0.04% (300.06% proof)
 14088!21-1 is prime! (2.4861s+0.0018s) (digits:2494)
 
 Primality testing 14453!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N+1 test using discriminant 7, base 8+sqrt(7)
 Running N+1 test using discriminant 7, base 10+sqrt(7)
 Calling N+1 BLS with factored part 98.06% and helper 0.02% (294.23% proof)
 14453!21-1 is prime! (2.9717s+0.0014s) (digits:2567)
 
 Primality testing 14969!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N-1 test using base 7
 Running N-1 test using base 821
 Running N+1 test using discriminant 907, base 2+sqrt(907)
 Running N+1 test using discriminant 907, base 3+sqrt(907)
 Calling N+1 BLS with factored part 98.14% and helper 0.20% (294.62% proof)
 14969!21-1 is prime! (3.4578s+0.0019s) (digits:2669)
 
 Primality testing 15137!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N-1 test using base 7
 Running N-1 test using base 823
 Running N+1 test using discriminant 863, base 1+sqrt(863)
 Running N+1 test using discriminant 863, base 2+sqrt(863)
 Calling N+1 BLS with factored part 98.31% and helper 0.02% (294.96% proof)
 15137!21-1 is prime! (3.6009s+0.0016s) (digits:2702)
 
 Primality testing 17982!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1013
 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 100.00% and helper 0.13% (300.14% proof)
 17982!21-1 is prime! (4.3033s+0.0015s) (digits:3274)
 
 Primality testing 19841!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 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 99.53% and helper 0.02% (298.61% proof)
 19841!21-1 is prime! (6.0843s+0.0020s) (digits:3653)
 
 Primality testing 20349!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 977
 Running N+1 test using discriminant 991, base 1+sqrt(991)
 Running N+1 test using discriminant 991, base 2+sqrt(991)
 Calling N+1 BLS with factored part 100.00% and helper 0.01% (300.01% proof)
 20349!21-1 is prime! (2.5473s+0.0021s) (digits:3757)
 
 Primality testing 21621!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 7
 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 100.00% and helper 0.02% (300.03% proof)
 21621!21-1 is prime! (5.7397s+0.0023s) (digits:4019)
 
 Primality testing 22934!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N+1 test using discriminant 7, base 8+sqrt(7)
 Running N+1 test using discriminant 7, base 10+sqrt(7)
 Calling N+1 BLS with factored part 100.00% and helper 0.06% (300.08% proof)
 22934!21-1 is prime! (9.2011s+0.0022s) (digits:4290)
 
 Primality testing 27186!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 7
 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 100.00% and helper 0.01% (300.02% proof)
 27186!21-1 is prime! (10.1088s+0.0024s) (digits:5181)
 
 Primality testing 27692!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N-1 test using base 1993
 Running N-1 test using base 1999
 Running N-1 test using base 2017
 Running N+1 test using discriminant 2029, base 2+sqrt(2029)
 Running N+1 test using discriminant 2029, base 3+sqrt(2029)
 Calling N+1 BLS with factored part 100.00% and helper 0.01% (300.03% proof)
 27692!21-1 is prime! (11.2840s+0.0026s) (digits:5288)
 
 Primality testing 29634!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 7
 Running N+1 test using discriminant 1693, base 1+sqrt(1693)
 Running N+1 test using discriminant 1693, base 2+sqrt(1693)
 Calling N+1 BLS with factored part 100.00% and helper 0.15% (300.15% proof)
 29634!21-1 is prime! (11.3841s+0.0023s) (digits:5700)
 
 Primality testing 32645!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N+1 test using discriminant 1669, base 2+sqrt(1669)
 Running N+1 test using discriminant 1669, base 3+sqrt(1669)
 Calling N+1 BLS with factored part 100.00% and helper 0.03% (300.04% proof)
 32645!21-1 is prime! (17.5931s+0.0024s) (digits:6345)
 
 Primality testing 33660!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1877
 Running N+1 test using discriminant 1933, base 1+sqrt(1933)
 Running N+1 test using discriminant 1933, base 2+sqrt(1933)
 Calling N+1 BLS with factored part 100.00% and helper 0.00% (300.01% proof)
 33660!21-1 is prime! (17.5221s+0.0028s) (digits:6563)
 
 Primality testing 47393!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N+1 test using discriminant 7, base 8+sqrt(7)
 Running N+1 test using discriminant 7, base 10+sqrt(7)
 Calling N+1 BLS with factored part 100.00% and helper 0.01% (300.01% proof)
 47393!21-1 is prime! (34.2257s+0.0043s) (digits:9575)
 
 Primality testing 48722!21-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3
 Running N+1 test using discriminant 2687, base 1+sqrt(2687)
 Running N+1 test using discriminant 2687, base 2+sqrt(2687)
 Calling N+1 BLS with factored part 100.00% and helper 0.05% (300.05% proof)
 48722!21-1 is prime! (45.1143s+0.0043s) (digits:9871)