PFGW Version 20040817.Win_Dev (Beta 'caveat utilitor') [FFT v23.8]
Primality testing 2^340688-29 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 2
Running N+1 test using discriminant 5, base 1+sqrt(5)
2^340688-29 is Fermat and Lucas PRP! (9599.4317s+0.0057s)

To be completed...