Question

find the least number which must be added to the following number so as to get a perfect square . also find the square root of the perfect square so obtained.
a) 1750

Answer 1

Add 14 to 1750 then it becomes 1764 which is a perfect square
And the square root of perfect square so obtained is 
$\sqrt{1764} = 42$

Answer 2

Answer:

Prime factorise the no. Given

Then see which factor does not have any pairs.

Multiply the no. by the no. which doesn’t have a pair.

Subtract the original no. From the no. Obtained.

The answer will be found