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

  • question_answer
    Which among the following is a composite number?

    A)   17                             

    B)  19                  

    C)  21                  

    D)    23

    Correct Answer: C

    Solution :

    21 is a composite number as \[\text{21 }=\text{3}\times \text{7}.\]


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