Primality testing (26813^4201-1)/26812 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 19
Running N-1 test using base 23
Running N+1 test using discriminant 37, base 12+sqrt(37)
Calling N-1 BLS with factored part 1.48% and helper 0.03% (4.47% proof)
(26813^4201-1)/26812 is Fermat and Lucas PRP! (246.0353s+23.5070s)

To be completed...