Question

is 8640 a perfect cube lf yes then find out cube root of 8640

Answer 1

$Resolving \:8640 \: into \:prime \: factors ,$

$we \:get$

8640 = 2×2×2× 2×2×2× 3×3×3× 5

The prime factor 5 doesn't appear in a group of three.

So, 8640 is not a perfect cube .

•••♪

Answer 2

To Find :

find out cube root of 8640

Solution :

prime factorisation of 8640

8640 = 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5

we always find cube root by taking pair of 3 same no. in each group but 5 is not in group. So, 8640 is not perfect cube

★ 8640 is not perfect cube