13

This number is a prime.

Single Curio View:   (Seek other curios for this number)
Three planes can cut a donut into a maximum of 13 parts. [Laurv]

Submitted: 2004-01-24 14:04:12;   Last Modified: 2008-01-30 11:19:11.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell