Question

find the least number which must be added to 21018 to make a perfect square

Answer 1

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The square root of 21018 is 144.97 plus. So, 145^2 = 21025. So, add 7 to21018 to make it a perfect square.

Answer 2

The square root of 21018 is 144.97 plus. So, 145^2 = 21025. So, add 7 to 21018 to make it a perfect square.