\({9}\) is a square number. \(3 \times 3 = 9\) \(3 \times 3\) can also be written as \(3^2\). This is pronounced "\({3}\) squared". \({8}\) is a cube number. The ...

A cube may be written using index notation: 5³ is 5 cubed. 64 is both a perfect square (64 = 8 × 8) and a cube. (64 = 4 × 4 × 4). 8 has four factors, 8, 4, 2 and 1. It is a composite number ...