1st PRP for 2^n-31301.

Sieved to P=200G.

Primality testing 2^128886-31301 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 47
Running N+1 test using discriminant 59, base 2+sqrt(59)
Calling N+1 BLS with factored part 0.01% and helper 0.00% (0.02% proof)
2^128886-31301 is Fermat and Lucas PRP! (613.0895s+0.0058s)

To be completed...