

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


A. 
66 
B. 
11 


C. 
2 
D. 
22 


Hint 


2. 
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 


3. 
What is the greatest common factor of 64 and 40? 


A. 
4 
B. 
20 


C. 
8 
D. 
2 


Hint 


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


A. 
6 
B. 
9 


C. 
3 
D. 
13 


Hint 


5. 
What is the greatest common factor of 36, 54, and 90. 


A. 
9 
B. 
18 


C. 
36 
D. 
6 


Hint 


