1st PRP for 2^n-342337.

Sieved to P=200G.

Primality testing 2^105191-342337 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 41
Running N+1 test using discriminant 47, base 3+sqrt(47)
Calling N-1 BLS with factored part 0.02% and helper 0.01% (0.08% proof)
2^105191-342337 is Fermat and Lucas PRP! (498.9028s+0.0125s)

To be completed...