Question

Find the smallest number by which 240 must be multiplied so that the product is a perfect square. *

Answer 1

15

Explanation:

`240 = 2 * 2 * 2 * 2 * 3 * 5 \\ = {2}^(4) * 15 \\`

Here, 15 is not a square number so, 240 should be multiplied by 15 to make 240 as perfect square.

240* 15 = 3600