Primality testing 26463^34460-34460^26463 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 7
Running N-1 test using base 11
Running N+1 test using discriminant 17, base 2+sqrt(17)
Calling N-1 BLS with factored part 0.00% and helper 0.00% (0.01% proof)
26463^34460-34460^26463 is Fermat and Lucas PRP! (2247.3397s+0.0039s)

Sieved with xyyxsieve

To be completed...