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Explain why 7 *11 * 13 …

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Explain why 7 *11 * 13 + 13 and 7 * 6 *5 * 4 *3 * 2 *1 + 5 are composite number

    • Posted by Yadav Ahir. 5 years, 1 month ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    . . 5 years, 1 month ago

    In the first no. 13 is common factor 13(7*11*1+1) In the second one 2 is common factor. 2(7*3*5*2*3*1*1+5) So they are composite numbers

    2Thank You

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