Primality testing 27320^32629-32629^27320 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N+1 test using discriminant 7, base 6+sqrt(7)
Calling N+1 BLS with factored part 0.01% and helper 0.00% (0.03% proof)
27320^32629-32629^27320 is Fermat and Lucas PRP! (879.2699s+0.0030s)

Sieved with xyyxsieve

To be completed...