

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


A. 
22 
B. 
66 


C. 
2 
D. 
11 


Hint 


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


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


C. 
5 
D. 
5ab^{2} 


Hint 


3. 
What is the greatest common factor of 16x^{2} and 12x? 


A. 
16x^{2} 
B. 
4x 


C. 
4x^{2} 
D. 
12x 


Hint 


4. 
What is the greatest common factor of 39 and 18? 


A. 
9 
B. 
13 


C. 
3 
D. 
6 


Hint 


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


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


C. 
7pq 
D. 
14pq 


Hint 


