1.	Find the prime factorization of 126.
		A.	2 × 2 × 3 × 3 × 7	B.	2 × 3 × 3
		C.	2 × 3 × 3 × 7	D.	2 × 3 × 7
		Hint
	2.	Find the GCF of 24 and 54.
		A.	12	B.	3
		C.	6	D.	2
		Hint
	3.	Find the least common multiple of 6 and 15.
		A.	60	B.	15
		C.	3	D.	30
		Hint
	4.	Factor 144 completely.
		A.	2 · 2 · 2 · 2 · 3 · 3	B.	12 · 12
		C.	4 · 4 · 9	D.	3 · 3 · 4 · 4
		Hint
	5.	Are 12 and 25 relatively prime? Explain.
		A.	Yes; 12 is even and 25 is odd.
		B.	No; 12 and 25 are not prime numbers.
		C.	Yes; 12 and 25 have no common factors.
		D.	No; 12 has three prime factors.
		Hint