Primality testing 25929^35404-35404^25929 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N+1 test using discriminant 17, base 6+sqrt(17)
Calling N+1 BLS with factored part 0.00% and helper 0.00% (0.02% proof)
25929^35404-35404^25929 is Fermat and Lucas PRP! (1861.7709s+0.0044s)

Sieved with xyyxsieve

To be completed...