Question

The least number by which 216 must be divided to make the result a perfect square, is

• A. 3
• B. 4
• C. 6
• D. 9

Answer 1

Answer: (C)

6

$216=2\times 2\times 2\times 2\times 3\times 3\times 3$
Clearly, in order to make it a perfect square, it must be divided by $2\times 3$ i.e.,$6$.