Check whether the following numbers are perfect squares. If not, find the number by which these should be multiplied so that the product is a perfect square. Also, find the square root of the new number obtained.

$8400$

Check whether the following numbers are perfect squares. If not, find the number by which these should be multiplied so that the product is a perfect square. Also, find the square root of the new number obtained.

$147$

Check whether the following numbers are perfect squares. If not, find the number by which these should be multiplied so that the product is a perfect square. Also, find the square root of the new number obtained.

$3645$

Check whether the following numbers are perfect squares. If not, find the number by which these should be multiplied so that the product is a perfect square. Also, find the square root of the new number obtained.

$1323$

Check whether the following numbers are perfect squares. If not, find the number by which these should be multiplied so that the product is a perfect square. Also, find the square root of the new number obtained.

$1568$

Check whether the following number is perfect square. If not, find the number by which this should be divided so that the quotient is a perfect square. Also, find the square root of the new number obtained.

$9408$

Check whether the following number is perfect square. If not, find the number by which this should be divided so that the quotient is a perfect square. Also, find the square root of the new number obtained.

$8281$

Check whether the following number is perfect square. If not, find the number by which this should be divided so that the quotient is a perfect square. Also, find the square root of the new number obtained.

$3645$

Check whether the following number is perfect square. If not, find the number by which this should be divided so that the quotient is a perfect square. Also, find the square root of the new number obtained.

$1200$