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7 September, 22:08

Which answer choice is a composite number? A) 17 B) 21 C) 29 D) 31

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Answers (2)
  1. 7 September, 23:14
    0
    A composite number is a positive integer which is not prime; it has factors other than 1 and itself

    A) 17 - prime

    B) 21 - composite because factors of 21 = 1, 3, 7, 21

    C) 29 - prime

    D) 31 - prime

    Answer

    B) 21
  2. 8 September, 01:07
    0
    the answer thats a composite number is b) 21.
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