1. 4.3 GCF October 28, 2011
List the factors of Bellwork
1. 36
2. 4
3. 126
Objective find and use prime factorizations
HW pg. 189 #1724, 2941 1
2. 4.3 GCF October 28, 2011
Write the prime factorization of each number.
72 121
HW pg. 189 #1724, 2941 2
3. 4.3 GCF October 28, 2011
Greatest Common Factor (GCF):
Find the GCF of each pair of numbers or expressions.
40 and 60 6a3b and 4a2b
HW pg. 189 #1724, 2941 3
4. 4.3 GCF October 28, 2011
Use the prime factorization to find each GCF.
12, 87 What do these numbers divide by? How do we know?
HW pg. 189 #1724, 2941 4
5. 4.3 GCF October 28, 2011
Find the GCF.
15m2n, 45m
HW pg. 189 #1724, 2941 5
