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GCF and LCM

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  • What is the GCF of 2 and 5?
    1
  • What is the GCF of 18 and 21?
    3
  • What is the LCM of 4 and 10?
    20
  • What is the GCF of 9 and 30?
    3
  • What is the LCM of 24 and 16?
    48
  • What is the GCF of 25 and 50?
    25
  • What is the GCF of 6, 24, 30?
    6
  • What is the GCF of 12, 15, 21?
    3
  • What is the GCF of 16 and 40?
    8
  • What is the GCF of 25 and 35?
    5
  • What is the LCM of 14 and 21?
    42
  • What is the LCM of 9 and 12?
    36
  • What is the LCM of 3 and 10?
    30
  • What is the GCF of 7 and 11?
    1
  • What is the LCM of 6 and 18?
    18
  • What is the GCF of 13 and 39?
    13
  • What is the GCF of 4 and 19?
    1
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