## Wednesday, April 22, 2009

Are you good in math back when you were a student at school? This posting is n ot really about math, well, it is but this doesn't require you to do counting and stuff. Just want to let you know that each number has its own meaning and definition when it comes to mathematics. Just when we thought that those are only numbers, actually there are more than just numbers. See what's behind every number. Each has its own story and definition. Starts form 0 to 9999. Wow, can you imagine how clever the one who invented this numerical list?

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.
11 is the largest known multiplicative persistence.
12 is the smallest abundant number.
13 is the number of Archimedian solids.