Question

find the smallest number by which the 845 must be multiplied to make it a perfect square

Answer 1

5 is the smallest number by which the 845 mist be multiplied to make it pefect square which is 845*5=4225
and
$\sqrt{4225}$
=65

Answer 2

Answer:

The required number to make 845 a perfect square is 5.

Step-by-step explanation:

First of all, taking L.C.M of the given number 845 to achieve smallest number.

845 = 5*13*13

So after calculating the L.C.M of 845, we've noticed that 13 is a pair and the number 5 is the only unpaired number. So multiplying the number 845 with 5, we'll get;

845*5 = 5*5*13*13

4225 = 5*5*13*13

which is a perfect square.