Primality testing 27122^39799-39799^27122 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N-1 test using base 5
Running N+1 test using discriminant 13, base 2+sqrt(13)
Calling N+1 BLS with factored part 0.00% and helper 0.00% (0.02% proof)

Sieved with xyyxsieve

To be completed...