PFGW:
Primality testing 87^44563-86^44563 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N+1 test using discriminant 7, base 9+sqrt(7)
Calling N-1 BLS with factored part 0.03% and helper 0.00% (0.08% proof)
87^44563-86^44563 is Fermat and Lucas PRP! (2935.1080s+0.0098s)

To be completed...