Number = 2
Cube of number = 23
= 2 × 2 × 2
= 8
Cube of a number is a number which we get when a number is multiplied by itself 3 times.
Here, 8 is a cube number
They are sometimes also called perfect cubes
Let’s do some examples
Number |
Cube |
1 |
1 × 1 × 1 = 1 |
2 |
2 × 2 × 2 = 8 |
3 |
3 × 3 × 3 = 27 |
4 |
4 × 4 × 4 = 64 |
5 |
5 × 5 × 5 = 125 |
6 |
6 × 6 × 6 = 216 |
7 |
7 × 7 × 7 = 343 |
8 |
8 × 8 × 8 = 512 |
9 |
9 × 9 × 9 = 729 |
10 |
10 × 10 × 10 = 1000 |
Thus, 1, 8, 27, 64, 125, 216, 343, 512, 729, 1000 are cube numbers
Is 1 a cube number?
Cube numbers is a number which we get when a number is multiplied by itself 3 times.
So, 1, 8, 27, 64, …. …. are cube numbers
∴ 1 is a cube number