The square of a number can not endwith --- of the following – InterviewSolution

1.	The square of a number can not endwith --- of the following
Answer» A NUMBER having 2, 3, 7 or 8 at unit's PLACE is never a perfect SQUARE. In other words, no square number ENDS in 2, 3, 7 or 8. PROPERTY 2: The number of zeros at the end of a perfect square is always even. In other words, a number ending in an odd number of zeros is never a perfect square.

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