

1. 
Based on the factor trees, what is the greatest common factor of 8 and 20? 


A. 
4 
B. 
2 


C. 
8 
D. 
20 


Hint 


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


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


C. 
5ab 
D. 
5ab^{2} 


Hint 


3. 
George wants to resurface the table below with ceramic tiles. What is the largest square tile that he can use without having to cut any tiles? 





A. 
6 inches on each side 
B. 
12 inches on each side 


C. 
8 inches on each side 
D. 
4 inches on each side 


Hint 


4. 
What is the greatest common factor of 20x^{2} and 32x^{3}? 


A. 
4x 
B. 
8x 


C. 
4x^{2} 
D. 
8x^{3} 


Hint 


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


A. 
14pq 
B. 
7pq 


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


Hint 


