Question

Find the smallest number by which 5808 should be multiplied so that the product becomes a perfect square.

• A. 2
• B. 3
• C. 7
• D. 11
• E. 13

Answer 1

The correct option is B

3

5808 = 2 x 2 x 2 x 2 x 3 x 11 x 11 = 2${}^2$ x 2${}^2$x 3 x 11${}^2$

To get a perfect square, it has to be multiplied by 3.