PFGW Version 20040817.Win_Dev (Beta caveat utilitor ) [FFT v23.8]
Primality testing F(931517) [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 2
Running N+1 test using discriminant 5, base 4+sqrt(5)
F(931517) is Fermat and Lucas PRP! (57937.2727s+0.2119s)

To be completed...