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20 questions
Show answers
  • Q1

    Write 16 as the product of its prime factors.

    2 x 2 x 2 x 2

    2 x 2 x 3

    2 x 2 x 2

    2 x 2 x 2 x 2 x 3

    300s
    M4NS-IIb-67
  • Q2

    What is the least common multiple of 6 and 9?

    24

    12

    16

    18

    300s
    M4NS-IId-70.1
  • Q3

    The LCM of 21 and 7 is _____.

    105

    225

    21

    42

    300s
    M4NS-IId-70.1
  • Q4

    What is the greatest common factor of 10 and 20?

    8

    40

    10

    20

    300s
    M4NS-IId-70.1
  • Q5

    The LCM of 9 and 15 is ____

    90

    30

    45

    5

    300s
    M4NS-IId-70.1
  • Q6

    Write 60 as the product of its prime factors.

    2 x 2 x 2 x 2 x 3 x 5

    2 x 2 x 3 x 5                            

    2 x 2 x 5 x 3 x 3

    2 x 3 x 3 x 5

    300s
    M4NS-IId-70.1
  • Q7

    What is the GCF of 35 and 5?

    10

    15

    35

    5

    300s
    M4NS-IId-70.1
  • Q8

    The greatest common factor of 14 and 28 is ____

    12

    28

    7

    14

    300s
    M4NS-IId-70.1
  • Q9

    What is the least common multiple of 8 and 12?

    24

    6

    24

    3

    300s
    M4NS-IId-70.1
  • Q10

    The LCM of 7 and 6 is _____.

    84

    36

    12

    42

    300s
    M4NS-IId-70.1
  • Q11

    What are the prime factors of 18?

    2 x 3 x 3    

    2x 2 x 3 x 3 x 5

    2 x 3 x 3 x 3

    2 x 2 x 2 x 3 x 3

    300s
    M4NS-IIb-67
  • Q12

    The LCM of 12 and 30 is ______

    45

    60

    90

    180

    300s
    M4NS-IId-70.1
  • Q13

    What is the smallest common multiple of 24 and 36?

    24

    12

    36

    72

    300s
    M4NS-IId-70.1
  • Q14

    Which of these are not factors of 30?

    8 and 6

    6 and 5

    2 and 15

    3 and 10

    300s
    M4NS-IIa-64
  • Q15

    Which of the is the greatest common factor of 36 and 40?

    6

    8

    4

    2

    300s
    M4NS-IId-70.1

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