Primality testing 43^63177-42 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 19
Running N+1 test using discriminant 29, base 11+sqrt(29)
Calling N-1 BLS with factored part 0.04% and helper 0.01% (0.13% proof)
43^63177-42 is Fermat and Lucas PRP! (27226.110000 seconds)

To be completed...