19
This number is a prime.
Single Curio View: (Seek other curios for this number)
The smallest number (coincidentally prime) with an additive persistence of 2. [Gupta]
Submitted: 2002-02-23 12:01:40; Last Modified: 2015-04-12 15:20:06.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell