Found with PFGW Version 3.7.5

8507^9180-9180^8507 is 2-PRP! (22.7815s+0.0190s)
8507^9180-9180^8507 is 3-PRP! (22.8909s+0.0033s)
8507^9180-9180^8507 is 5-PRP! (22.6772s+0.0013s)
8507^9180-9180^8507 is 7-PRP! (22.8278s+0.0014s)
8507^9180-9180^8507 is 11-PRP! (22.7925s+0.0012s)

Primality testing 8507^9180-9180^8507 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 7
Running N+1 test using discriminant 13, base 12+sqrt(13)
Calling N-1 BLS with factored part 0.02% and helper 0.01% (0.07% proof)
8507^9180-9180^8507 is Fermat and Lucas PRP! (119.3260s+0.0027s)

To be completed...