Question

Tick (✓) the correct answer
By what least number should 1536 be divided to get a perfect cube?
(a) 3
(b) 4
(c) 6
(d) 8

Answer 1

(a) 3


1536 = $2\times 2\times 2\times 2\times 2\times 2\times 2\times 2\times 2\times 3={\left(2\right)}^3\times {\left(2\right)}^3\times {\left(2\right)}^3\times 3$
Therefore, to get a perfect cube, we need to divide 1536 by 3.