

1. 
Find the GCF of 28 and 34. 


A. 
4 
B. 
1 


C. 
7 
D. 
2 


Hint 


2. 
Find the GCF of 24 and 54. 


A. 
2 
B. 
6 


C. 
12 
D. 
3 


Hint 


3. 
Which two numbers have a GCF of 9? 


A. 
18, 36 
B. 
36, 39 


C. 
45, 95 
D. 
36, 45 


Hint 


4. 
Find the GCF of 38 and 49. 


A. 
2 
B. 
4 


C. 
1 
D. 
3 


Hint 


5. 
Which two numbers have a GCF of 7? 


A. 
25, 45 
B. 
35, 126 


C. 
7, 17 
D. 
21, 63 


Hint 

