45 = 5 \times 9\) and so is not prime. 43 is prime as the only factors of 43 are 1 and 43. The first square number is 1 because \(1 \times 1 = 1\). The second square number is 4 because \(2 \times ...

A cube number relates to the volume of a cube. The area of a square is calculated by length × length. The area of a 1 unit by 1 unit square is 1 × 1 = 1 The area of a 4 unit by 4 unit square is ...