Primality testing (16*10^24588-19)/3 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 5
Running N+1 test using discriminant 17, base 1+sqrt(17)
Calling N+1 BLS with factored part 0.20% and helper 0.00% (0.60% proof)
(16*10^24588-19)/3 is Fermat and Lucas PRP! (209.2179s+0.0018s)

To be completed...