Primality testing 2^80771+53873 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 7
Running N+1 test using discriminant 13, base 10+sqrt(13)
Calling N+1 BLS with factored part 0.05% and helper 0.02% (0.17% proof)
2^80771+53873 is Fermat and Lucas PRP! (97.3218s+0.0108s)

To be completed...