PFGW Version 1.2.0 for Windows [FFT v23.8]

Primality testing 9939#*10^(9939+50)+p(9939+3)
[N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 7
Running N-1 test using base 11
Running N+1 test using discriminant 23, base 1+sqrt(23)
9939#*10^(9939+50)+p(9939+3) is Fermat and Lucas PRP!

To be completed...