49
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No- the closest perfect squares are 36 (perfect square of 6) and 49 (perfect square of 7)
NO!!! The nearest perfect square is '36' = 6 x 6 = 6^(2) = 36 The next perfect square is '49' = 7 x 7 = 7^(2) = 49
It can be. 7 is a non-perfect square and, being an integer, it is rational.
7 is not the square of a perfect integer - the square root of 7, rounded to two decimal places, is 2.65.
51 is not a perfect square. 72 = 49 82 = 64 51 is between 49 and 64 so its square root is 7+a bit, and it is not a perfect square.