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6th Class Mathematics Playing with Numbers Question Bank Playing with Numbers

  • question_answer
    What is the prime factorisation of 143?

    A)  \[\text{2 }\!\!\times\!\!\text{ 11 }\!\!\times\!\!\text{ 13}\]      

    B) \[\text{11 }\!\!\times\!\!\text{ 13}\]  

    C)  \[\text{2 }\!\!\times\!\!\text{ 3 }\!\!\times\!\!\text{ 7}\]           

    D) \[\text{1 }\!\!\times\!\!\text{ 2 }\!\!\times\!\!\text{ 3 }\!\!\times\!\!\text{ 7}\]

    Correct Answer: B

    Solution :

    \[143=11\times 13\]


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