Test whether the given numbers are perfect cubes or not.

729

Given, a number 729 and need to find out whether it is perfect cube or not.

Now, we have the perfect cube = , where m and n are integers

⇒ 729 is a perfect cube as it can be expressed as

n × n × n form the product of three equal

integer.

⇒ 729 = 9 × 9 × 9

Hence, 729 is a perfect cube.