Found with PFGW Version 3.7.5

2706^10457-10457^2706 is 2-PRP! (22.6246s+0.0023s)
2706^10457-10457^2706 is 3-PRP! (22.7770s+0.0023s)
2706^10457-10457^2706 is 5-PRP! (22.5581s+0.0024s)
2706^10457-10457^2706 is 7-PRP! (22.7391s+0.0024s)
2706^10457-10457^2706 is 11-PRP! (22.6667s+0.0023s)

Primality testing 2706^10457-10457^2706 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 5
Running N+1 test using discriminant 13, base 1+sqrt(13)
Calling N+1 BLS with factored part 0.02% and helper 0.00% (0.05% proof)
2706^10457-10457^2706 is Fermat and Lucas PRP! (116.0970s+0.0026s)

To be completed...