9473
This number is a prime.
9473 is the largest 4-digit prime p with this property: p
(9473) and the next prime after p (9479) are both Sophie
Germain primes. [Keith]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
9473 is the largest 4-digit prime p with this property: p
(9473) and the next prime after p (9479) are both Sophie
Germain primes. [Keith]