Found with PFGW Version 3.6.0

28^24326+27 is 2-PRP! (20.5826s+0.0008s)
28^24326+27 is 3-PRP! (20.9216s+0.0007s)
28^24326+27 is 5-PRP! (20.6902s+0.0007s)
28^24326+27 is 7-PRP! (20.7367s+0.0019s)
28^24326+27 is 11-PRP! (20.8392s+0.0009s)

Primality testing 28^24326+27 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 2
Running N-1 test using base 3
Running N+1 test using discriminant 13, base 2+sqrt(13)
Calling N+1 BLS with factored part 0.15% and helper 0.01% (0.47% proof)
28^24326+27 is Fermat and Lucas PRP! (156.2990s+0.0025s)

To be completed...