What's Special About This Number?
0 is the additive identity.
1 is the multiplicative identity.
2 is the only even prime.
3 is the number of spatial dimensions we live in.
4 is the smallest number of colors sufficient to color all planar maps.
5 is the number of Platonic solids.
6 is the smallest perfect number.
7 is the smallest number of faces of a regular polygon that is not constructible by straightedge and compass.
8 is the largest cube in the Fibonacci sequence.
9 is the maximum number of cubes that are needed to sum to any positive integer.
10 is the base of our number system.

a math prof made this cool site talking about special quality about thousands of numbers...good mental masterbation for all the number theory junkies out there (you know who you are)...

[ Wow. definitely one of the nerdiest things i've ever seen. -k]

What's Special About This Number?