This article is abouth the speciality of the numbers from 1 to 200 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 sides of a regular polygon that is not constructible by straightedge and compass.