Probability to find a probable prime
 

pg(215),pg(69660),pg(92020) and pg(541456) are prp...


215, 69660, 92020 and 541456 are 0 mod 43 and 10^m mod 41...


i am trying to find the next pg(43s) probable prime and I am considering the multiples of 43 which are congruent to 1 mod 41 as 69660...
a needle in the haystack do you think?


Any trick to accelerate the search?

candidate
 

A candidate is:


(2^2234624-1)*10^672689+2^2234623-1, no factor upto 10^7

THE NUMBER IS NOT PRP
 

Unfortunally the number is composite!