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GCF and LCM

Quiz by Lawrence Patrick

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10 questions
Show answers
  • Q1
    What is the least common multiple (LCM) of 4 and 5?
    10
    25
    20
    15
    30s
  • Q2
    What is the greatest common factor (GCF) of 16 and 24?
    6
    8
    12
    4
    30s
  • Q3
    What is the least common multiple (LCM) of 3 and 7?
    14
    28
    21
    42
    30s
  • Q4
    What is the greatest common factor (GCF) of 9 and 12?
    9
    6
    12
    3
    30s
  • Q5
    What is the least common multiple (LCM) of 6 and 8?
    18
    36
    24
    12
    30s
  • Q6
    What is the greatest common factor (GCF) of 18 and 27?
    9
    12
    3
    6
    30s
  • Q7
    What is the least common multiple (LCM) of 5 and 6?
    25
    30
    10
    15
    30s
  • Q8
    What is the greatest common factor (GCF) of 20 and 30?
    15
    20
    5
    10
    30s
  • Q9
    What is the least common multiple (LCM) of 2 and 9?
    18
    9
    20
    12
    30s
  • Q10
    What is the greatest common factor (GCF) of 14 and 21?
    3
    14
    7
    21
    30s

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