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5.4A Prime and Composite Numbers

Quiz by Wendy Tamney

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3 questions
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  • Q1
    Which of the following is NOT a composite number?
    76
    39
    2
    15
    60s
  • Q2
    The factor tree for the number 45 is shown. According to the factor tree, which of the following statements is NOT true?
    Question Image
    The number 5 is a composite number.
    The number 3 is a prime number.
    3 and 5 are the prime factors of 45.
    9 and 45 are not prime numbers.
    60s
  • Q3
    Yani uses blocks to show the difference between prime and composite numbers. The diagrams below represent some of Yani's models. Which of the models represent prime numbers?
    Question Image
    7 and 11
    8, 9, and 10
    7, 9, and 11
    8 and 10
    60s

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