1999

This number is a prime.

Single Curio View:   (Seek other curios for this number)
The smallest invertible prime that yields another invertible prime when each digit d is repeated d times: 1999999999999999999999999999. [Beedassy]

Submitted: 2009-04-11 15:15:09;   Last Modified: 2009-04-11 17:00:49.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell