Primality testing 43^12976-42 [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 13, base 2+sqrt(13)
Calling N-1 BLS with factored part 0.23% and helper 0.03% (0.74% proof)
43^12976-42 is Fermat and Lucas PRP! (1153.922000 seconds)

To be completed...