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8th Class Mathematics Cubes and Cube Roots Question Bank Cube and Cube Roots

  • question_answer
    What is the least number by which 1565109 must be multiplied so that me product becomes a prefect cube?

    A)  11                               

    B)  12          

    C)  13     

    D)  14

    Correct Answer: C

    Solution :

    (c): \[1565109=9\times 173901\] \[=9\times 3\times 57967\] \[=9\times 3\times 13\times 4459\] \[=27\times {{13}^{2}}\times {{7}^{3}}\] = To make a cube, we need to multiply by 13.


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