Found with PFGW Version 3.8.0

6900^12607-12607^6900 is 2-PRP! (43.2444s+0.0072s)
6900^12607-12607^6900 is 3-PRP! (43.0924s+0.0077s)
6900^12607-12607^6900 is 5-PRP! (42.8190s+0.0090s)
6900^12607-12607^6900 is 7-PRP! (42.8431s+0.0085s)
6900^12607-12607^6900 is 11-PRP! (43.0522s+0.0150s)

Primality testing 6900^12607-12607^6900 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 31
Running N+1 test using discriminant 53, base 1+sqrt(53)
Calling N+1 BLS with factored part 0.03% and helper 0.00% (0.09% proof)
6900^12607-12607^6900 is Fermat and Lucas PRP! (246.1685s+0.0155s)

To be completed...