Name: 
 

Prime and Composite Numbers, Practice 2


Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 
How many factors does a prime number have?
A
1
C
0
B
3
D
2
 

 2. 
Which of these is a prime number?
A
39
C
18
B
34
D
17
 

 3. 
Which of these is a prime number?
A
46
C
21
B
24
D
23
 

 4. 
Which of these is a prime number?
A
29
C
30
B
58
D
51
 

 5. 
Which of these is a composite number?
A
26
C
3
B
13
D
17
 

 6. 
Which of these is a composite number?
A
3
C
17
B
23
D
6
 

 7. 
Which of these is a composite number?
A
2
C
34
B
17
D
29
 

 8. 
What numbers complete this factor tree?
mc008-1.jpg
A
2, 4, and 7
C
3, 4, and 7
B
3, 4, and 6
D
2, 3, and 7
 

 9. 
What numbers complete this factor tree?
mc009-1.jpg
A
2 x 2 x 2
C
2 x 3 x 3
B
3 x 3 x 3
D
2 x 2 x 3
 

 10. 
What numbers complete this factor tree?
mc010-1.jpg
A
2 x 25
C
5 x 5 x 5
B
2 x 2 x 5
D
2 x 5 x 5
 



 
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