The least perfect square, which is divisible by each of $21, 36$ and $66$ is

Find the square root of the following number by using the method of prime factorization: $225$

The value of $\sqrt{96+\sqrt{2304}}$ is

Find the least number that must be added to the following number to make it a perfect square.

$9352.$

Find the value of the following:

$\sqrt{\frac{144}{289}}$

Find the square root of the following number by using the method of prime factorization: $729$

There are $2116$ students in a school. In how many equal rows and columns can they be arranged for a drill display?

Find the square root of  the following number by using the method of prime factorization: $441$

Solve:

$\sqrt{\frac{169}{225}}$

By mere observation, find the number of digits in the square root of the following number.

$3,90,625$

Find the square root of the following number correct to two decimal places.

$3\frac{1}{4}$

By which least number should the following number be divided to make it a perfect square?

$11520$