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Greatest/Least Common Factor
Test Description: Math SOL Review Workshop
Instructions: Answer all questions to get your test result.
1) What is the greatest common factor of 15 and 36?
A
3
B
9
C
5
D
7
2) What is the greatest common factor of 12 and 20?
A
7
B
6
C
12
D
4
3) What is the greatest common factor of 21 and 28?
A
9
B
7
C
14
D
3
4) What is the greatest common factor of 18 and 30?
A
9
B
3
C
6
D
5
5) What is the greatest common factor of 40, 35, and 20?
A
10
B
5
C
15
D
8
6) What is the greatest common factor of 8, 12, and 36?
A
8
B
4
C
5
D
6
7) What is the least common multiple of 3 and 5?
A
10
B
15
C
20
D
5
8) What is the least common multiple of 9 and 6?
A
24
B
30
C
9
D
18
9) What is the least common multiple of 4, 6, and 12?
A
6
B
24
C
12
D
30
10) What is the least common multiple of 4, 5, and 8?
A
35
B
32
C
40
D
20
11) List all the factors of 8.
A
1,8
B
1,2,4,8,16
C
1,2,4,8
D
2,4
12) List the first 6 multiples of 4.
A
4,8,12,16, 20, 24
B
4, 8, 12, 16, 20, 24
C
4,10,12,8,16, 20
D
4, 8, 14, 16, 20, 24
13) List the first 4 multiples of 12.
A
12, 24, 48, 36
B
12, 24, 36, 48
C
12, 24, 48, 92
D
12, 22, 36, 48
*select an answer for all questions
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