1st PRP for 2^n-77711.

Sieved to P=200G.

Primality testing 2^80070-77711 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 163
Running N+1 test using discriminant 173, base 3+sqrt(173)
Running N+1 test using discriminant 173, base 4+sqrt(173)
Running N-1 test using base 3
Running N+1 test using discriminant 13, base 1+sqrt(13)
Calling N+1 BLS with factored part 0.02% and helper 0.00% (0.06% proof)
2^80070-77711 is Fermat and Lucas PRP! (338.8371s+0.0022s)

To be completed...