1.
Find the GCF of 28 and 34.
A.
2
B.
7
C.
4
D.
1
Hint
2.
Look at the factors of 24 and 16. What is the greatest common factor?
factors of 16: 1, 2, 4, 8, 16
factors of 24: 1, 2, 3, 4, 6, 8, 12, 24
A.
4
B.
8
C.
16
D.
2
Hint
3.
Find the GCF of 32 and 42.
A.
2
B.
4
C.
3
D.
14
Hint
4.
Find the GCF of 33, 48, and 54.
A.
1
B.
3
C.
2
D.
8
Hint
5.
Which two numbers have a GCF of 7?
A.
7, 17
B.
35, 126
C.
21, 63
D.
25, 45
Hint