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The number 64 is both a perfect cube and a perfect square, since 4^3 = 64 and 8^2 = 64. What is the next larger number that is both a perfect cube and a perfect square?

 May 25, 2020
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sqrt 53      does not work

        6

        7

        8     does not

        9     works    9^3 =     729       sqrt 729 = 27

 May 25, 2020
edited by ElectricPavlov  May 25, 2020

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