13

This number is a prime.

Single Curio View: (Seek other curios for this number)

The smallest prime that can be expressed as the sum of two primes (2 + 11) and two composites (4 + 9) in only one way. [Gupta]

Submitted: 2003-03-16 02:54:18; Last Modified: 2008-07-30 21:55:24.