Quote:
Originally Posted by kar_bon
One down for the Rieselbase 5 conjecture:
64598 * 5^37698541 is prime, 2,635,020 digits, found on 20220614 by PrimeGrid.
Curious: the 5 digits of the kvalue appear also in the nvalue.
Awaiting official announcement, still some tasks open for this k.

Congratulations!
This is the 97th prime with between 2 million and 3 million digits.
There are 10 primes in total (in that range) of the form k* 5^n +/ 1. (8 with 1 and 2 with +1)