Using prime factorisation, find which of the following are perfec… - Vidyadip

Question

Using prime factorisation, find which of the following are perfect cubes.
$729$

✓

Answer

We have, $729 = 3 \times 3 \times 3 \times 3 \times 3 \times 3$
Since, the prime factors appear in triplets.
So, $729$ is a perfect cube.

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