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-   -   Pg primes congruent to 1111 mod 42^2 (https://www.mersenneforum.org/showthread.php?t=24545)

enzocreti 2019-06-27 12:31

Pg primes congruent to 1111 mod 42^2
 
pg numbers are so defined:


pg(k)=(2^k-1)*10^d+2^(k-1)-1 where d is the number of decimal digits of 2^(k-1)-1.


pg(8), pg(176006) and pg(541456) are probable primes. They are cogruent to 19 mod (42) and to 1111 mod(42^2).



Do you believe these primes are infinitely many?


primes pg congruent to 19 mod 42 and to 1111 (mod 42^2)?


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