# Definition:Cube Number

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## Definition

A **cube number** (or just **cube**) is a number which can be expressed as the third power of an integer.

In the words of Euclid:

*And a***cube**is equal multiplied by equal and again by equal, or a number which is contained by three equal numbers.

(*The Elements*: Book $\text{VII}$: Definition $19$)

### Sequence of Cube Numbers

The sequence of positive cube numbers begins:

- $1, 8, 27, 64, 125, 216, 343, 512, 729, 1000, \ldots$

## Also see

- Definition:Square Number
- Results about
**cube numbers**can be found here.

## Sources

- 1986: David Wells:
*Curious and Interesting Numbers*... (previous) ... (next): Glossary - 1997: David Wells:
*Curious and Interesting Numbers*(2nd ed.) ... (previous) ... (next): Glossary