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Finding the Greatest Common Factor

Quiz by Simone Rascoe

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10 questions
Show answers
  • Q1
    What is the greatest common factor of 28 and 42?
    7
    5
    14
    2
    60s
  • Q2
    What is the greatest common factor of these 39 and 9?
    9
    3
    13
    10
    60s
  • Q3
    What is the greatest common factor of these 72 and 56?
    7
    8
    6
    12
    60s
  • Q4
    What is the greatest common factor of these 14 and 63?
    3
    7
    14
    6
    60s
  • Q5
    What is the greatest common factor of these 3 and 12?
    12
    8
    4
    3
    60s
  • Q6
    What is the greatest common factor of these 22 and 11?
    22
    10
    2
    11
    60s
  • Q7
    What is the greatest common factor of these 6 and 16?
    6
    3
    2
    4
    60s
  • Q8
    What is the greatest common factor of these 10, 15 and 5?
    5
    15
    3
    10
    60s
  • Q9
    What is the greatest common factor of these 21, 6, and 9?
    7
    9
    3
    6
    60s
  • Q10
    What is the greatest common factor of these 18, 10, and 4?
    8
    4
    2
    3
    60s

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