1.
What is the greatest common factor of 36 and 45?
A.
45
B.
3
C.
36
D.
9
Hint
2.
What is the greatest common factor of 25
a
2
b
and 5
ab
2
?
A.
5
ab
B.
5
C.
5
ab
2
D.
5
a
2
b
2
Hint
3.
What is the greatest common factor of 39 and 18?
A.
3
B.
6
C.
9
D.
13
Hint
4.
What is the greatest common factor of 20
x
2
and 32
x
3
?
A.
8
x
B.
4
x
2
C.
8
x
3
D.
4
x
Hint
5.
What is the greatest common factor of 14
p
2
q
and 42
p
3
q
2
?
A.
14
p
2
q
B.
14
pq
C.
7
pq
D.
7
p
2
q
2
Hint