Primality testing 31227^34952-34952^31227 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 5
Running N+1 test using discriminant 19, base 2+sqrt(19)
Calling N-1 BLS with factored part 0.01% and helper 0.01% (0.04% proof)
31227^34952-34952^31227 is Fermat and Lucas PRP! (1083.0857s+0.0028s)

Sieved with xyyxsieve

To be completed...