Question
The least perfect square, which is divisible by each of 21, 36 and 66 is:
Answer: Option A
L.C.M. of 21, 36, 66 = 2772.
Now, 2772 = 2 x 2 x 3 x 3 x 7 x 11
To make it a perfect square, it must be multiplied by 7 x 11.
So, required number
= 22 x 32 x 72 x 112
= 213444
Was this answer helpful ?
L.C.M. of 21, 36, 66 = 2772.
Now, 2772 = 2 x 2 x 3 x 3 x 7 x 11
To make it a perfect square, it must be multiplied by 7 x 11.
So, required number
= 22 x 32 x 72 x 112
= 213444
Was this answer helpful ?
More Questions on This Topic :
Question 1. The cube root of .000216 is:....
Question 3. $$\sqrt {1.5625} = ?$$....
Question 5. If **Hidden Equation** is ?
Question 7. $$\sqrt {0.2} = ?$$....
Question 8. The value of **Hidden Equation** is = ?....
Question 9. The value of $$\sqrt {0.121} $$ is = ?....
Submit Solution