Found with PFGW Version 3.7.5

2617^7922-7922^2617 is 2-PRP! (31.5413s+0.0046s)
2617^7922-7922^2617 is 3-PRP! (39.1925s+0.0059s)
2617^7922-7922^2617 is 5-PRP! (29.4205s+0.0038s)
2617^7922-7922^2617 is 7-PRP! (28.8642s+0.0025s)
2617^7922-7922^2617 is 11-PRP! (23.8618s+0.0021s)

Primality testing 2617^7922-7922^2617 [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)
Calling N-1 BLS with factored part 0.01% and helper 0.01% (0.05% proof)
2617^7922-7922^2617 is Fermat and Lucas PRP! (157.6230s+0.0051s)

To be completed...