1st PRP for 2^n-505409.

Sieved to P=200G.

Primality testing 2^35480-505409 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 5
Running N+1 test using discriminant 11, base 3+sqrt(11)
Calling N-1 BLS with factored part 0.08% and helper 0.04% (0.29% proof)
2^35480-505409 is Fermat and Lucas PRP! (45.7571s+0.0049s)

To be completed...