Question

Find out the square root of 1764.

• A. 38
• B. 32
• C. 48
• D. 42

Answer 1

The correct option is D 42

The square root of 1764 by prime factorization, we get
1764 = 2 $\times$ 2 $\times$ 3 $\times$ 3 $\times$ 7 $\times$ 7.
$\sqrt{1}764$ = $\sqrt{2\times 2\times 3\times 3\times 7\times 7}$
= 2 $\times$ 3 $\times$ 7
= 42