Question

Find the least number by which $384$ must be divided to make it a perfect square

Answer 1

$384=3\times \underset{}{2\times 2}\times \underset{}{2\times 2}\times \underset{}{2\times 2}\times 2$
${}^{\prime }{3}^{\prime }$ and ${}^{\prime }{2}^{\prime }$ remain without a pair.
Hence, $384$ must be divided by $6$ to make it a perfect square.