7

This number is a prime.

Single Curio View:   (Seek other curios for this number)
The game Tetris uses 7 one-sided tetrominoes (referred to as I, J, L, O, S, T, and Z). [Poo Sung]

Submitted: 2009-04-12 09:22:13;   Last Modified: 2009-04-12 09:58:22.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell