Find the square root of the following number by the prime factorisation method:

$4225$

Find the square root of the following number by the prime factorisation method:

$47089$

Find the square root of the following number by the prime factorisation method:

$24336$

Find the square root of the following number by the prime factorisation method:

$298116$

Find the square root of the following number by the prime factorisation method:

$28900$

By which the least number should we multiply the following to make perfect square?

$700$

By which the least number should we multiply the following to make perfect square?

$6912$

By which the least number should we multiply the following to make perfect square?

$117600$

By which the least number should we multiply the following to make perfect square?

$780$