Primality testing 56^35055-35055^56 [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 discriminant 41, base 1+sqrt(41)
Calling N+1 BLS with factored part 0.02% and helper 0.01% (0.07% proof)
56^35055-35055^56 is Fermat and Lucas PRP! (146.3452s+0.0009s)

Sieved with xyyxsieve

To be completed...