1st PRP for 2^n-164467.

Sieved to P=200G.

Primality testing 2^166227-164467 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 151
Running N+1 test using discriminant 163, base 1+sqrt(163)
Calling N-1 BLS with factored part 0.03% and helper 0.00% (0.09% proof)
2^166227-164467 is Fermat and Lucas PRP! (2512.5300s+0.0525s)

To be completed...