1.
Based on the factor trees, what is the greatest common factor of 8 and 20?
A.
8
B.
2
C.
20
D.
4
Hint
2.
What is the greatest common factor of 36 and 45?
A.
45
B.
3
C.
9
D.
36
Hint
3.
What is the greatest common factor of 25
a
2
b
and 5
ab
2
?
A.
5
B.
5
a
2
b
2
C.
5
ab
D.
5
ab
2
Hint
4.
What is the greatest common factor of 64 and 40?
A.
8
B.
4
C.
2
D.
20
Hint
5.
What is the greatest common factor of 14
p
2
q
and 42
p
3
q
2
?
A.
7
p
2
q
2
B.
14
pq
C.
7
pq
D.
14
p
2
q
Hint