

1. 
Find the GCF of 24 and 54. 


A. 
3 
B. 
6 


C. 
12 
D. 
2 


Hint 


2. 
Find the GCF of 16, 12, and 36. 


A. 
3 
B. 
4 


C. 
6 
D. 
2 


Hint 


3. 
Find the GCF of 32 and 42. 


A. 
2 
B. 
4 


C. 
14 
D. 
3 


Hint 


4. 
Find the GCF of 38 and 49. 


A. 
1 
B. 
4 


C. 
2 
D. 
3 


Hint 


5. 
Which two numbers have a GCF of 7? 


A. 
25, 45 
B. 
35, 126 


C. 
21, 63 
D. 
7, 17 


Hint 

