Definition:Number Prefixes

Definition

This page documents some of the more common prefixes that are used to indicate specific numbers.

hemi-

The prefix hemi- denotes half: $\dfrac 1 2$.

semi-

The prefix semi- denotes half: $\dfrac 1 2$.

bi-

The prefix bi- denotes $2$.

tri-

The prefix tri- denotes $3$.

tetra-

The prefix tetra- denotes $4$.

penta-

The prefix penta- denotes $5$.

hexa-

The prefix hexa- denotes $6$.

hepta-

The prefix hepta- denotes $7$.

oct-

The prefix oct- denotes $8$.

ennea-

The prefix ennea- denotes $9$.

nona-

The prefix nona- denotes $9$.

deca-

The prefix deca- denotes $10$.

hendeca-

The prefix hendeca denotes $11$.

dodeca-

The prefix dodeca denotes $12$.

icosa-

The prefix icosa denotes $20$.

hect-

The prefix hect- is usually used to denote $100$.