Question

find the smallest number by which 768 must be multiplied to get the perfect square number

Answer 1

Solution:-
$768 = 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 3$
Multiply by3 both side
$768 \times 3 = 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times \times 3 \times 3$
The smallest number by which 768 should be multiplied = 3