Question

plz... step by step. Is 9720 a perfect cube ? if not find the smallest by which it should be divided to get perfect cube?

Answer 1

$9720 = {2}^{3} \times {3}^{5} \times 5 \\ 9720 = ( {2}^{3} \times {3}^{3} )( {3}^{2} \times 5)$
so we must divide it by 3^2×5=45

Answer 2

Heya..

Here is your answer....