PFGW Version 1.2.0 for Windows [FFT v23.8]

Primality testing 10^28427+10011111
[N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N+1 test using discriminant 23, base 1+sqrt(23)
10^28427+10011111 is Fermat and Lucas PRP!

To be completed...