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4th Class Mathematics Factors and Multiples Question Bank Factors and Multiples

  • question_answer
    Which number fills the blank?
    11 and ____ are co-prime numbers.
               

    A)              11                  

    B)    88      

    C)  143                

    D)    13

    Correct Answer: D

    Solution :

    Co-prime numbers have only 1 as their common factor. So, 13 is a co-prime of 11.


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