This number is a prime.

                                                   111 1222222222 2222222211

Single Curio View:   (Seek other curios for this number)
R(23) + R(19) - R(2) is prime. Note that R(2), R(19), and R(23), are the first three repunit primes. [Wesolowski]

Submitted: 2008-01-08 14:33:19;   Last Modified: 2008-01-30 11:28:00.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell