1.	Find the GCF of 28 and 34.
		A.	2	B.	1
		C.	7	D.	4
		Hint
	2.	Find the GCF of 32 and 42.
		A.	2	B.	14
		C.	3	D.	4
		Hint
	3.	Find the GCF of 38 and 49.
		A.	1	B.	2
		C.	3	D.	4
		Hint
	4.	Find the GCF of 33, 48, and 54.
		A.	3	B.	1
		C.	8	D.	2
		Hint
	5.	Which two numbers have a GCF of 7?
		A.	7, 17	B.	25, 45
		C.	21, 63	D.	35, 126
		Hint