Found with PFGW Version 3.7.5

6868^7185-7185^6868 is 2-PRP! (47.3548s+0.0044s)
6868^7185-7185^6868 is 3-PRP! (48.2200s+0.0053s)
6868^7185-7185^6868 is 5-PRP! (47.9804s+0.0052s)
6868^7185-7185^6868 is 7-PRP! (47.8656s+0.0058s)
6868^7185-7185^6868 is 11-PRP! (47.8941s+0.0051s)

Primality testing 6868^7185-7185^6868 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N+1 test using discriminant 7, base 8+sqrt(7)
Calling N+1 BLS with factored part 0.11% and helper 0.03% (0.35% proof)
6868^7185-7185^6868 is Fermat and Lucas PRP! (257.8459s+0.0078s)

To be completed...