No, it is not. For it to be a perfect square, the square root of it would have to be an integer, but √120 ≈ 10.954. 100 and 121 are perfect squares nearest to 120. ■
120 squared = 14400
The perfect square of 75 is 5625. Not sure of the relevance of "greatest", though.
5040 is not a perfect square. The greatest perfect square less than 5040 is 4900.
The greatest perfect square is 36.
99801 is the greatest 5 digit number * * * * * 99801 is not a perfect square! Sqrt(99801) = 315.91 (approx). The largest 5 digit perfect square is 99856 = 3162
1 and 4.
4
8747
The largest 5 digit perfect square is 99856 = 3162
650 has no factor that is a perfect square, other than 1.
As the question is phrased, the answer is 1/120 which would give the product 1: a perfect square. But the "correct" answer is, presumably, 30.