1.	Use the factor tree to write the prime factorization of 120.
		A.	2 × 3 × 5	B.	2 × 60
		C.	2 × 2 × 2 × 3 × 5	D.	2 × 2 × 3 × 5
		Hint
	2.	What are the prime factors of 120?
		A.	2, 3, 5	B.	2, 60
		C.	2, 2, 30	D.	2, 2, 2, 3, 5
		Hint
	3.	Which of the following numbers is prime?
		A.	15	B.	1
		C.	5	D.	9
		Hint
	4.	Write the prime factorization of 204.
		A.	2 × 3 × 17	B.	2 × 2 × 3 × 17
		C.	6 × 17	D.	2 × 17
		Hint
	5.	Which of the following numbers is prime?
		A.	43	B.	57
		C.	63	D.	75
		Hint