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Show that 13*17*19*23+13*23 is composite number

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Show that 13*17*19*23+13*23 is composite number

    • Posted by Mohit Sharma 4 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Gaurav Seth 4 years, 10 months ago

    We will check the result
    13 × 1 7 × 19 × 23 + 13 × 23
    221 × 437 + 299
    96577 + 299
    96876
    Let's do factorization
    96876 = 2 ×  2× 3 × 3 ×  3× 3  ×13 × 23
     It is divisible by numbers other than 1 and the number itself.
    So, it is a composite number
     

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