Wednesday, 19 July 2017

6

Six is the first perfect number, which means it is the sum of all its divisors (3, 2, 1), and the only number that is both the sum and product of the same three consecutive positive integers (1, 2, 3).

It's also the atomic number of carbon, the biological basis of all known life.  Six-sided shapes (hexagons) are everywhere in nature.

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