1st PRP for 2^n-224129.

Sieved to P=200G.

Primality testing 2^147676-224129 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 61
Running N+1 test using discriminant 103, base 1+sqrt(103)
Calling N+1 BLS with factored part 0.03% and helper 0.00% (0.08% proof)
2^147676-224129 is Fermat and Lucas PRP! (2353.4997s+0.0049s)

To be completed...