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Yesterday, 20:39

What number is composite 2,11,9,5

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  1. Yesterday, 20:51
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    A composite number is one where it has factors other than 1 and itself.

    Since 9 = 3*3, this means 3 is a factor of 9 and 9 is composite. The other values are prime numbers because the only factors of something like 11 is 1 and 11. Same for 2 and 5.

    Answer: 9
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