22
This number is a composite.
Single Curio View: (Seek other curios for this number)
The smallest multi-digit square-free number such that all the digits are primes. [Russo]
Submitted: 2002-08-14 09:40:19; Last Modified: 2008-01-30 17:28:00.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell