Question

$243$ is the cube root of _________

Answer 1

Cube root of $243$ can be found using the prime factorization as shown below;

By resolving $243$ into prime factors,

By grouping the factors in triplets of equal factors, $243=(3\times 3\times 3)\times 3\times 3$

Here , $3$cannot be grouped into triplets of equal factors

so $∛243=3∛9$

Therefore, the cube root of $243$is $3∛9$