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Number = 2

Cube of number = 2 3

     = 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

Cube Definition - Teachoo.jpg

 

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

Hence, 1 is a cube number

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.