Primality testing (31862^4201-1)/31861 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 2
Running N-1 test using base 3
Running N+1 test using discriminant 7, base 1+sqrt(7)
Calling N-1 BLS with factored part 1.97% and helper 0.00% (5.92% proof)
(31862^4201-1)/31861 is Fermat and Lucas PRP! (1753.7991s+0.0045s)

To be completed...