Q.

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


see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

3

b

4

c

6

d

9 

answer is C.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Given number is 216.
Writing the prime factors of 216.
216=2×2×2×3×3×3
Clearly, in order to make it a perfect square, it must be divided by 2×3 i.e., 6.
Thus, the number 216 must be divided by 6 to get a perfect square.
Therefore, option (3) is correct.
 
Watch 3-min video & get full concept clarity

tricks from toppers of Infinity Learn

score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon