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10 questions
What are the factors of 20?
1, 2, 4, 5, 10, 20
1, 2, 5, 10, 20
1, 2, 3, 4, 10, 20
1, 2, 4, 5, 8, 10, 20
What are the factors of 16?
1
2
3
4
8
How many factors does 15 have?
4
5
3
2
What are the common factors of 12 and 18?
1
2
3
4
6
How many common factors are there in 8 and 14?
2
1
none
3
4
Which of the following are multiples of 7?
14
35
49
27
54
What is the 8th multiple of 6?
48
54
56
46
42
What is the 3rd common multiple of 4 and 6?
36
32
30
28
24
What are the common multiples of 3 and 4?
12
18
24
32
36
Which of the following is a group of prime numbers?
2, 3, 5, and 7
11, 13, 17 and 19
1, 2, 3, and 4
3, 5, 7 and 9
13, 15, 17 and 21
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