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Cube Roots

What is the c...

Question

What is the cube root of 729?

A

8

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B

12

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C

14

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D

9

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Solution

The correct option is D
9

Cube root of an odd number is an odd number.
So, in the given option 9 is the odd number.

Also, we can find the the cube root using prime factorization

$\sqrt[3]{729}$ = $\sqrt[3]{9 \times 9 \times 9}$ = $\sqrt[3]{9^{3}}$ = $9$

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