6!4+1 trivially factors prime!: 13 (digits:2)
 18!4+1 trivially factors prime!: 30241 (digits:5)
 
 Primality testing 38!4+1 [N-1, Brillhart-Lehmer-Selfridge]
 small number, factored prime!
 38!4+1 is prime! (0.0138s+0.0011s) (digits:12)
 
 Primality testing 56!4+1 [N-1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 17
 Calling Brillhart-Lehmer-Selfridge with factored part 60.94%
 56!4+1 is prime! (0.0046s+0.0006s) (digits:20)
 
 Primality testing 94!4+1 [N-1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 71
 Running N-1 test using base 73
 Running N-1 test using base 89
 Running N-1 test using base 103
 Calling Brillhart-Lehmer-Selfridge with factored part 34.96%
 94!4+1 is prime! (0.0059s+0.0009s) (digits:38)
 
 Primality testing 118!4+1 [N-1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 67
 Calling Brillhart-Lehmer-Selfridge with factored part 41.46%
 118!4+1 is prime! (0.0172s+0.0011s) (digits:50)
 
 Primality testing 148!4+1 [N-1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 41
 Calling Brillhart-Lehmer-Selfridge with factored part 49.77%
 148!4+1 is prime! (0.0289s+0.0013s) (digits:66)
 
 Primality testing 286!4+1 [N-1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 149
 Calling Brillhart-Lehmer-Selfridge with factored part 35.12%
 286!4+1 is prime! (0.0236s+0.0051s) (digits:146)
 
 Primality testing 1358!4+1 [N-1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 701
 Running N-1 test using base 727
 Running N-1 test using base 733
 Running N-1 test using base 739
 Calling Brillhart-Lehmer-Selfridge with factored part 35.59%
 1358!4+1 is prime! (0.0840s+0.0009s) (digits:918)
 
 Primality testing 1480!4+1 [N-1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 373
 Calling Brillhart-Lehmer-Selfridge with factored part 41.36%
 1480!4+1 is prime! (0.0219s+0.0012s) (digits:1014)
 
 Primality testing 1514!4+1 [N-1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 761
 Running N-1 test using base 787
 Calling Brillhart-Lehmer-Selfridge with factored part 34.85%
 1514!4+1 is prime! (0.0527s+0.0011s) (digits:1042)
 
 Primality testing 2680!4+1 [N-1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 673
 Running N-1 test using base 677
 Calling Brillhart-Lehmer-Selfridge with factored part 37.91%
 2680!4+1 is prime! (0.1415s+0.0012s) (digits:2008)
 
 Primality testing 2846!4+1 [N-1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1427
 Calling Brillhart-Lehmer-Selfridge with factored part 34.81%
 2846!4+1 is prime! (0.1073s+0.0013s) (digits:2151)
 
 Primality testing 4078!4+1 [N-1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 2069
 Running N-1 test using base 2081
 Calling Brillhart-Lehmer-Selfridge with factored part 35.50%
 4078!4+1 is prime! (0.4342s+0.0012s) (digits:3241)
 
 Primality testing 4288!4+1 [N-1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1097
 Calling Brillhart-Lehmer-Selfridge with factored part 35.61%
 4288!4+1 is prime! (0.2380s+0.0012s) (digits:3431)
 
 Primality testing 5612!4+1 [N-1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1409
 Calling Brillhart-Lehmer-Selfridge with factored part 34.32%
 5612!4+1 is prime! (0.4423s+0.0021s) (digits:4653)
 
 Primality testing 5680!4+1 [N-1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1423
 Calling Brillhart-Lehmer-Selfridge with factored part 34.29%
 5680!4+1 is prime! (0.4317s+0.0021s) (digits:4717)
 
 Primality testing 6440!4+1 [N-1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 1613
 Calling Brillhart-Lehmer-Selfridge with factored part 33.74%
 6440!4+1 is prime! (0.6857s+0.0016s) (digits:5436)
 
 Primality testing 6586!4+1 [N-1, Brillhart-Lehmer-Selfridge]
 Running N-1 test using base 3299
 Running N-1 test using base 3301
 Calling Brillhart-Lehmer-Selfridge with factored part 33.39%
 6586!4+1 is prime! (1.5402s+0.0020s) (digits:5575)