Found with PFGW Version 3.7.5

1603^10298-10298^1603 is 2-PRP! (20.7607s+0.0014s)
1603^10298-10298^1603 is 3-PRP! (21.3269s+0.0015s)
1603^10298-10298^1603 is 5-PRP! (21.3191s+0.0013s)
1603^10298-10298^1603 is 7-PRP! (21.6672s+0.0016s)
1603^10298-10298^1603 is 11-PRP! (21.2117s+0.0013s)

Primality testing 1603^10298-10298^1603 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N+1 test using discriminant 7, base 1+sqrt(7)
Calling N+1 BLS with factored part 0.03% and helper 0.02% (0.12% proof)
1603^10298-10298^1603 is Fermat and Lucas PRP! (108.7856s+0.0027s)

To be completed...