1st PRP for 6^n-305663

Sieved to P=10G

Primality testing 6^14999-305663 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 5
Running N-1 test using base 7
Running N+1 test using discriminant 17, base 6+sqrt(17)
Calling N+1 BLS with factored part 0.07% and helper 0.04% (0.27% proof)
6^14999-305663 is Fermat and Lucas PRP! (43.8382s+0.0006s)

To be completed...