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8th Class Mathematics Factorisation Question Bank Factors & Multiples

  • question_answer
    Which of the following number is a perfect Number?

    A)  20                              

    B)  26           

    C)  28                  

    D)  25

    Correct Answer: C

    Solution :

    \[1,\,\,2,\,\,4,\,\,7,\,\,14,\,\,28\] \[1+2+4+7+14=28\]


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