Checking for square

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This topic contains 1 reply, has 2 voices, and was last updated by  Srijit Mukherjee 3 months, 1 week ago.

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    Agamdeep Singh

    Question from a past assignment:

    Can a number written with one hundred 0’s, one hundred 1’s, and one hundred 2’s be a perfect square?


    Srijit Mukherjee

    Sum of the digits is 300.
    Implies divisible by 3 but not by 9.
    Hence not a perfect square.

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