1.	Find the prime factorization of 32.
		A.	2 × 2 × 2 × 2 × 2 × 2	B.	2 × 2 × 2 × 2 × 2
		C.	2 × 3	D.	2 × 2 × 2 × 2
		Hint
	2.	Determine which number is not prime.
		A.	57	B.	11
		C.	19	D.	61
		Hint
	3.	Find the prime factorization of 126.
		A.	2 × 3 × 7	B.	2 × 3 × 3
		C.	2 × 3 × 3 × 7	D.	2 × 2 × 3 × 3 × 7
		Hint
	4.	The rectangles show that the number 23 ______.
		A.	has three factors	B.	is composite
		C.	is neither prime nor composite	D.	is prime
		Hint
	5.	Find the prime factorization of 105.
		A.	5 × 21	B.	5 × 15
		C.	2 × 5 × 7	D.	3 × 5 × 7
		Hint