

1. 
What is the greatest common factor of 22, 66, and 110? 


A. 
66 
B. 
11 


C. 
2 
D. 
22 


Hint 


2. 
What is the greatest common factor of 25a^{2}b and 5ab^{2}? 


A. 
5a^{2}b^{2} 
B. 
5ab 


C. 
5ab^{2} 
D. 
5 


Hint 


3. 
What is the greatest common factor of 39 and 18? 


A. 
6 
B. 
3 


C. 
9 
D. 
13 


Hint 


4. 
What is the greatest common factor of 36, 54, and 90. 


A. 
36 
B. 
6 


C. 
18 
D. 
9 


Hint 


5. 
What is the greatest common factor of 14p^{2}q and 42p^{3}q^{2}? 


A. 
7pq 
B. 
14p^{2}q 


C. 
14pq 
D. 
7p^{2}q^{2} 


Hint 


