1st PRP for 2^n-224909.

Sieved to P=200G.

Primality testing 2^90976-224909 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 41
Running N+1 test using discriminant 67, base 2+sqrt(67)
Running N+1 test using discriminant 67, base 3+sqrt(67)
Running N+1 test using discriminant 67, base 4+sqrt(67)
Running N+1 test using discriminant 67, base 6+sqrt(67)
Running N+1 test using discriminant 67, base 8+sqrt(67)
Running N+1 test using discriminant 67, base 9+sqrt(67)
Calling N+1 BLS with factored part 0.01% and helper 0.00% (0.02% proof)
2^90976-224909 is Fermat and Lucas PRP! (2039.9888s+0.0072s)

To be completed...