A 1333..3333 number
PFGW Version 20090725.x86_Dev (Beta caveat utilitor ) [GWNUM 25.12]
(4*10^103703-1)/3 is 3-PRP! (110.6011s+0.0051s)
(4*10^103703-1)/3 is 7-PRP! (1875.3853s+0.0042s) (AMD/linux)
Primality testing (4*10^103703-1)/3 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 2
Running N+1 test using discriminant 5, base 4+sqrt(5)
Calling N-1 BLS with factored part 0.00% and helper 0.00% (0.00% proof)
(4*10^103703-1)/3 is Fermat and Lucas PRP! (10682.3684s+0.0144s)
To be completed...