Primality testing 25590^36241-36241^25590 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 7
Running N+1 test using discriminant 13, base 1+sqrt(13)
Calling N+1 BLS with factored part 0.01% and helper 0.00% (0.02% proof)
25590^36241-36241^25590 is Fermat and Lucas PRP! (2029.0551s+0.0045s)

Sieved with xyyxsieve

To be completed...