PFGW Version 1.2.0 for Windows [FFT v23.8]

Primality testing 2357023570*(10^(10*1001)-1)/(10^10-1)+6503
[N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 5
Running N+1 test using discriminant 11, base 1+sqrt(11)
2357023570*(10^(10*1001)-1)/(10^10-1)+6503 is Fermat and Lucas PRP!

To be completed...