4!2-1 trivially factors prime!: 7 (digits:1)
 6!2-1 trivially factors prime!: 47 (digits:2)
 8!2-1 trivially factors prime!: 383 (digits:3)
 16!2-1 trivially factors prime!: 10321919 (digits:8)
 
 Primality testing 26!2-1 [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 3+sqrt(23)
 Calling N+1 BLS with factored part 100.00% and helper 2.22% (304.44% proof)
 26!2-1 is prime! (0.0399s+0.0091s) (digits:14)
 
 Primality testing 64!2-1 [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 0.67% (301.34% proof)
 64!2-1 is prime! (0.0412s+0.0102s) (digits:46)
 
 Primality testing 82!2-1 [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 0.49% (300.98% proof)
 82!2-1 is prime! (0.0479s+0.0018s) (digits:62)
 
 Primality testing 90!2-1 [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 0.43% (300.43% proof)
 90!2-1 is prime! (0.0407s+0.0192s) (digits:70)
 
 Primality testing 118!2-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 61
 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 2.77% (303.08% proof)
 118!2-1 is prime! (0.0137s+0.0008s) (digits:98)
 
 Primality testing 194!2-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 101
 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 0.17% (300.50% proof)
 194!2-1 is prime! (0.0189s+0.0010s) (digits:182)
 
 Primality testing 214!2-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 109
 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 0.15% (300.29% proof)
 214!2-1 is prime! (0.0224s+0.0014s) (digits:205)
 
 Primality testing 728!2-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 383
 Running N+1 test using discriminant 397, base 1+sqrt(397)
 Running N+1 test using discriminant 397, base 2+sqrt(397)
 Calling N+1 BLS with factored part 100.00% and helper 0.03% (300.03% proof)
 728!2-1 is prime! (0.1637s+0.0009s) (digits:886)
 
 Primality testing 842!2-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 433
 Running N+1 test using discriminant 443, base 1+sqrt(443)
 Running N+1 test using discriminant 443, base 3+sqrt(443)
 Calling N+1 BLS with factored part 100.00% and helper 0.03% (300.06% proof)
 842!2-1 is prime! (0.2724s+0.0015s) (digits:1051)
 
 Primality testing 888!2-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 449
 Running N+1 test using discriminant 461, base 1+sqrt(461)
 Running N+1 test using discriminant 461, base 3+sqrt(461)
 Calling N+1 BLS with factored part 100.00% and helper 0.03% (300.08% proof)
 888!2-1 is prime! (0.2429s+0.0011s) (digits:1118)
 
 Primality testing 2328!2-1 [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 100.00% and helper 0.01% (300.01% proof)
 2328!2-1 is prime! (1.9887s+0.0012s) (digits:3416)
 
 Primality testing 3326!2-1 [N-1/N+1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1669
 Running N+1 test using discriminant 1697, base 1+sqrt(1697)
 Running N+1 test using discriminant 1697, base 3+sqrt(1697)
 Calling N+1 BLS with factored part 100.00% and helper 0.01% (300.02% proof)
 3326!2-1 is prime! (4.3522s+0.0022s) (digits:5137)