Find the smallest number by which 252 can be multiplied to obtain a perfect square
A
2
B
3
C
5
D
7
Verified Correct Answer: D.
Step-by-Step Mathematical Solution
\(252 = 2^{2} \times 3^{2} \times 7\)
\(\therefore\) To make 252 a perfect square, the smalest number to multiply with = 7.
\(252 \times 7 = 1764 = 42^{2}\)
Source: Myschool Past Questions Archive (Record #32009)