This number is a prime.

Single Curio View:   (Seek other curios for this number)
The number of 21-digit palindromic primes ending with the digit 9, computed by Shyam Sunder Gupta (2009), is a 9-digit prime number. [Capelle]

Submitted: 2009-03-13 20:26:46;   Last Modified: 2009-03-13 23:07:30.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell