Question

Which of the following numbers are not perfect cube?

(i) 100 (ii) 2700

Answer 1

(i) 100 

Resolving 100 into Prime factors as follows

Here, factors 2 and 5 are not in groups of three.

Therefore, 100 is not a perfect

(ii) 2700 

Resolving 2700 into Prime factors as follows

Here, factors 2 and 5 are not a groups of three.

Therefore, 2700 is not a perfect cube.