22222...22221 (244-digits)

This number is a prime.

                                       2222 2222222222 2222222222 2222222222
2222222222 2222222222 2222222222 2222222222 2222222222 2222222222 2222222222
2222222222 2222222222 2222222222 2222222222 2222222222 2222222222 2222222222
2222222222 2222222222 2222222222 2222222222 2222222222 2222222222 2222222221

+ If we call this number p, then the sum of the digits of this near rep-digit prime is prime, as well as 4*p+3 is another near rep-digit prime. [Patterson]

Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell