Find the smallest number by which the following should be multiplied in order to get a perfect square :

$600$

Find the smallest number by which the following should be multiplied in order to get a perfect square :

$2178$

Find the smallest number by which the following should be divided to get a perfect square :

$648$

Find the smallest number by which the following should be divided to get a perfect square :

$8064$

Find the smallest number that should be added to the following, to get a perfect square :

$27785$

Evaluate the square root of :

$\frac{3481}{8464}$