Question

what least number must be added to 621 to make it a perfect square ?​

Answer 1

the√621= 24.91

thus the square of 25 will be the perfect square nearest to 621

25^2=625

number to be added =625-621=4

thus 4 should be added to make 621 a perfect square

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Answer 2

Answer:

24*2=576

25*2=625

576 is very small to given number

so taking next no. I.e 625

625-621=4

4 answer