PFGW Version 3.3.6.20100908.Win_Stable [GWNUM 25.14]
Primality testing 7*10^19170-23 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N+1 test using discriminant 7, base 1+sqrt(7)
7*10^19170-23 is Fermat and Lucas PRP! (262.1607s+0.0009s)

To be completed...