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sidmanfu

  • 4 years ago

Which of the following numbers is composite? 4, 5, 9, 15

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  1. Mertsj
    • 4 years ago
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    4,9,15

  2. sidmanfu
    • 4 years ago
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    thanks

  3. mathmate
    • 4 years ago
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    A composite number has factors other that 1 and itself. From the above numbers, there is only one which is NOT composite. For example, factors of 4 are 1,2,5, so it is composite.

  4. sidmanfu
    • 4 years ago
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    soo "mathmate" what is the answer then?

  5. mathmate
    • 4 years ago
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    4,9,15 as Mertsj had it. The question is probably incorrectly worded saying: "Which of the following numbers IS composite" when there are three composites.

  6. sidmanfu
    • 4 years ago
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    thanks

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