Question

The least number by which 176 be multiplied to make the result a perfect square, is:

• A. 8
• B. 9
• C. 10
• D. 11

Answer 1

The correct option is D 11

$176=\underset{–}{2\times 2}\times \underset{–}{2\times 2}\times 11.$

So, in order to make it a perfect square, it must be multiplied by 11.