PFGW Version 4.1.3.64BIT.20240114.x86_Dev [GWNUM 30.19]
Primality testing 5^289926-289926^5 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 11
Running N+1 test using discriminant 17, base 12+sqrt(17)
Calling N+1 BLS with factored part 0.00% and helper 0.00% (0.02% proof)
5^289926-289926^5 is Fermat and Lucas PRP! (1373.1802s+0.0014s)

Leyland PRP
See also https://pzktupel.de/Primetables/TableLeyland2.php

To be completed...