1.	Look at the factors of 18 and 30. What is the greatest common factor? factors of 18: 1, 2, 3, 6, 9, 18 factors of 30: 1, 2, 3, 5, 6, 10, 15, 30
		A.	5	B.	6
		C.	2	D.	3
		Hint
	2.	Find the GCF of 24 and 54.
		A.	2	B.	12
		C.	6	D.	3
		Hint
	3.	Which two numbers have a GCF of 9?
		A.	18, 36	B.	36, 45
		C.	36, 39	D.	45, 95
		Hint
	4.	Find the GCF of 38 and 49.
		A.	4	B.	3
		C.	2	D.	1
		Hint
	5.	Find the GCF of 33, 48, and 54.
		A.	2	B.	8
		C.	1	D.	3
		Hint