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23 November, 09:53

Which of these numbers is prime? 13, 30, 49, 65, 87

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Answers (2)
  1. 23 November, 10:35
    0
    13

    Step-by-step explanation:

    factors of 13 : 1, 13

    factors of 30: 1, 2, 3, 5, 6, 10, 15, 30

    factors of 49: 1, 7, 49

    factors of 65: 1, 5, 13, 65

    factors of 87: 1, 3, 29, 87
  2. 23 November, 13:03
    0
    Answer: 13

    Explanation: 13 = prime

    30 = composite

    49 = composite

    65 = composite

    87 = composite
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