Found with PFGW Version 3.7.5

1897^7158-7158^1897 is 2-PRP! (32.2879s+0.0043s)
1897^7158-7158^1897 is 3-PRP! (32.2256s+0.0040s)
1897^7158-7158^1897 is 5-PRP! (32.4426s+0.0040s)
1897^7158-7158^1897 is 7-PRP! (31.9439s+0.0029s)
1897^7158-7158^1897 is 11-PRP! (32.0671s+0.0041s)

Primality testing 1897^7158-7158^1897 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 7
Running N+1 test using discriminant 13, base 6+sqrt(13)
Calling N-1 BLS with factored part 0.03% and helper 0.02% (0.12% proof)
1897^7158-7158^1897 is Fermat and Lucas PRP! (161.3398s+0.0112s)

To be completed...