Study

Factors & Multiples

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  • Sarah had 18 football cards. Can she group them in more than 2 ways?
    Yes
  • Which is a factor pair for 28? (3 and 9), (4 and 7), or (6 and 5)
    4 and 7
  • Select the prime number: 15, 19, 27
    19
  • Sally says that all of the factors of 20 are 1,2,4,5, and 10. Is she correct? Why or why not?
    No, she is not correct. She forgot that 20 is also a factor of 20.
  • List all of the factors of 9.
    1, 3, 9
  • Name a multiple of 5 that has a factor of 2.
    Ex: 10, 20, 30, etc.
  • Is 17 prime or composite?
    prime
  • What factors of 30 are also prime numbers?
    2, 3, 5
  • Is 30 a multiple of 6?
    yes
  • Name 3 multiples of 10.
    Ex: 10, 20, 30, etc.
  • Lauren made a factor tree for 16. Would the number 4 be on the tree?
    Yes
  • Which is not a factor pair for 24? (1 and 24), (3 and 6), (4 and 6)
    (3 and 6)
  • List all the factor pairs for 12.
    (1,12) (2,6) (3,4)
  • Which is not a multiple of 3? (3, 6, 9, or 13)
    13
  • Is 2 a prime or composite number?
    prime
  • Is 22 prime or composite?
    composite
  • Is 12 a prime or composite number?
    composite
  • Select the composite number: 5, 7, 9, 11
    9
  • Roger has 23 baseball cards. Can he group them in more than 2 ways?
    no
  • Is 5 a MULTIPLE of 15?
    No. 5 is a factor of 15.