Question

The smallest number to be multiplied by 72 to make it a perfect square is
a) 2 b) 3 c) 5

Answer 1

Answer:

the answer is option a)2

Answer 2

Answer:

a) 2

Step-by-step explanation:

we will di the factor of 72 by prime factorisation method.

we will make pairs of those numbers as it is in underoot.it means

√2*2*2*3*3

we don't have 2 more than 3times .

so we have to take 2 to make it a perfect square