PFGW Version 1.2.0 for Windows [FFT v23.8]
Primality testing 10^21247+7011013
[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)
10^21247+7011013 is Fermat and Lucas PRP! (269.4094s+0.0040s)
To be completed...