Primality testing 31093^39018-39018^31093 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 11
Running N-1 test using base 17
Running N-1 test using base 19
Running N+1 test using discriminant 29, base 14+sqrt(29)
Calling N-1 BLS with factored part 0.01% and helper 0.00% (0.03% proof)
31093^39018-39018^31093 is Fermat and Lucas PRP! (1789.7246s+0.0050s)

Sieved with xyyxsieve

To be completed...