1.
What is the greatest common factor of 36 and 45?
A.
3
B.
45
C.
36
D.
9
Hint
2.
What is the greatest common factor of 25
a
2
b
and 5
ab
2
?
A.
5
a
2
b
2
B.
5
ab
C.
5
D.
5
ab
2
Hint
3.
What is the greatest common factor of 39 and 18?
A.
3
B.
6
C.
13
D.
9
Hint
4.
What is the greatest common factor of 36, 54, and 90.
A.
18
B.
36
C.
9
D.
6
Hint
5.
What is the greatest common factor of 20
x
2
and 32
x
3
?
A.
4
x
2
B.
8
x
C.
8
x
3
D.
4
x
Hint