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5th Class Mathematics Factors and Multiples Question Bank Factor & Multiple

  • question_answer
    What is the least integer by which 4500 should be multiplied so that it becomes a perfect cube?

    A)  6                                

    B)  36          

    C)  2                                

    D)  3           

    Correct Answer: A

    Solution :

    3 4500
    5 1500
    3 800
    5 100
    5 20
    4
    \[={{3}^{2}}\times {{5}^{3}}\times {{2}^{2}}\](In order to make it cube we need to get\[{{3}^{2}}\times {{5}^{3}}\times {{2}^{2}}\] Hence, required number is 6.


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