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

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

    • Posted by Shailaja Singh 5 years, 1 month ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Rajpreet Rajpreet 5 years, 1 month ago

    Find the number of zeroes x2 -2x - 8

    0Thank You

    Bishwajeet Kumar 5 years, 1 month ago

    Since 7*11*13+13=13(7*11+1)=13(77+1)=13(78)=13*78 We no products of prime no. And co preme is composite no. Similarly 7*6*5*4*3*2*1+5=5(7*6*4*3*2*1+1)=5(1008+1)=5(1009)=5*1009 Product of prime numbers are composite

    0Thank You

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