991223
This number is a prime.
991223 is the largest 6-digit prime number that is
simultaneously a Sophie Germain prime and a balanced prime. [Pace]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Reginald McLean
This number is a prime.
991223 is the largest 6-digit prime number that is
simultaneously a Sophie Germain prime and a balanced prime. [Pace]