Primality testing 493^22424-22424^493 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N+1 test using discriminant 7, base 1+sqrt(7)
Calling N-1 BLS with factored part 0.01% and helper 0.01% (0.04% proof)
493^22424-22424^493 is Fermat and Lucas PRP! (120.0603s+0.0011s)

Sieved with xyyxsieve

To be completed...