# 2

A 2 is a prime positive natural number preceded by 1 and followed by 3.

**AKA:**Two.- …

**Counter-Example(s):****See:**2-Tuple, Even Number, Numeral System, Binary Numeral System, Prime Number.

## References

### 2014

- (Wikipedia, 2014) ⇒ http://en.wikipedia.org/wiki/2_(number) Retrieved:2014-11-12.