Question

find the least number which must be added to 708 to obtain a perfect square

Answer 1

Answer:

21 is the least number which must be added to 708 to obtain a perfect square.

Step-by-step explanation:

We know that,

$26^{2} =676$ and

$27^{2} =729$

So, to get the perfect square value we have to add 21 in 708.

$\sqrt{708+21} =\sqrt{729} \\=27$

Therefore, 21 is the least number which must be added to 708 to obtain a perfect square.

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