4 (four) is a positive integer following 3 and preceding 5. It is the smallest composite number, the square of 2, and an even number. Base 4, sometimes used as a way of compressing binary, is called quaternary, but less used in this respect as hex(adecimal) and octal.
Properties[]
- There are 4 seasons in a year.
- There are 4 cardinal directions.
- Most animals have 4 legs.
- The human blood has 4 types.
In googology[]
- Latin Prefix: quadr-/quattuor-
- Greek Prefix: tetra-
Aliases[]
- Faketest (Cloudy176) - Mwo
- Faketest (Username5243) - Dwo