Found with PFGW Version 3.7.5

3107^7112-7112^3107 is 2-PRP! (19.5147s+0.0025s)
3107^7112-7112^3107 is 3-PRP! (19.6503s+0.0028s)
3107^7112-7112^3107 is 5-PRP! (22.2426s+0.0028s)
3107^7112-7112^3107 is 7-PRP! (23.8162s+0.0040s)
3107^7112-7112^3107 is 11-PRP! (24.8939s+0.0044s)

Primality testing 3107^7112-7112^3107 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N+1 test using discriminant 11, base 1+sqrt(11)
Calling N+1 BLS with factored part 0.02% and helper 0.02% (0.09% proof)
3107^7112-7112^3107 is Fermat and Lucas PRP! (132.9375s+0.0054s)

To be completed...