1.	Find the GCF of 24 and 54.
		A.	12	B.	2
		C.	3	D.	6
		Hint
	2.	What are the prime factors of 120?
		A.	2, 3, 5	B.	2, 2, 2, 3, 5
		C.	2, 2, 30	D.	2, 60
		Hint
	3.	Find the least common multiple of 6 and 15.
		A.	60	B.	15
		C.	3	D.	30
		Hint
	4.	Which number is not a factor of 315?
		A.	3	B.	9
		C.	2	D.	5
		Hint
	5.	Factor 144 completely.
		A.	3 · 3 · 4 · 4	B.	4 · 4 · 9
		C.	2 · 2 · 2 · 2 · 3 · 3	D.	12 · 12
		Hint