Cube number - GCSE Maths Definition

A cube number is a number that you get when you multiply a whole number by itself twice. For example, if you multiply 2 by itself, then multiply the result by 2 again, you get 2 x 2 x 2 = 8, so 8 is a cube number. In other words, a cube number is the result of raising a number to the power of three. Cube numbers can be useful in various mathematical problems and are important to understand when studying sequences and functions in GCSE Maths. Some of the first few cube numbers include 1 (because 1 x 1 x 1 = 1), 8, 27 (from 3 x 3 x 3), and 64 (from 4 x 4 x 4).