23
This number is a prime.
Single Curio View: (Seek other curios for this number)
There are exactly 23 prime-digit primes below one thousand,
and 23 is one of them (more precisely the nth,
where n is the (prime) sum of its digits). [Beedassy]
Submitted: 2009-05-03 05:53:59; Last Modified: 2009-05-03 16:19:03.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell