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No, not always since: if a number is more than 1, then its square root is smaller than the number. if a number is less than 1, then its square root is bigger than the number.
Select the other number so that it is bigger than the square number!
272 = 729; 282 = 784 √700 = 26.45... so first square number greater than 700 is 272 = 729 √800 = 28.28... so last square number less than 800 is 282 = 784
841 is a perfect square in the range.
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