Primality testing 27180^38917-38917^27180 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 11
Running N+1 test using discriminant 17, base 1+sqrt(17)
Calling N+1 BLS with factored part 0.01% and helper 0.01% (0.03% proof)
27180^38917-38917^27180 is Fermat and Lucas PRP! (1193.0626s+0.0028s)

Sieved with xyyxsieve

To be completed...