31
This number is a prime.
Single Curio View: (Seek other curios for this number)
The smallest prime such that replacing each digit d with d copies
of the digit d produces a different prime (3331).
Submitted: 1999-09-02 23:40:00; Last Modified: 2008-01-30 17:19:14.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell