Question

Find the cube root of the following number by prime factorization method:

64

• A. $2$
• B. $4$
• C. $8$
• D. $10$

Answer 1

The correct option is B 4

Prime factorising, we get,

64=2×2×2×2×2×2

=4×4×4––––––––––.

Here, the factor 4 occur as triplet. Hence, it is a perfect cube.

Therefore, cube root of 64, i.e. 3√64=4.