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  3. 4th Class
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  5. Factors and Multiples

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

  • question_answer
    What type of numbers are 21 and 31?

    A)  Prime                         

    B)  Composite     

    C)    Co-prime       

    D)    Twin prime

    Correct Answer: C

    Solution :

    Not Available


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