12345678910987654321
This number is a prime.
1234567891 0987654321
Single Curio View: (Seek other curios for this number)
The smallest prime among concatenations of ascending and descending numbers from 1. [Poo Sung]
Submitted: 2009-05-07 13:41:06; Last Modified: 2009-05-09 02:38:10.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell