Near-repdigit-related probable prime
http://homepage2.nifty.com/m_kamada/math/factorizations.htm
PFGW Version 3.4.8.64BIT.20110617.Win_Dev [GWNUM 26.6]
Primality testing [N-1/N+1, Brillhart-Lehmer-Selfridge]
Fermat and Lucas PRP!

To be completed...