1. Warm Up: All of the factors of 48
Are you here?
Warm Up:
All of the factors of 48
The prime factorization for 48 and 72
GCF(48, 72)
LCM(48, 72)
Explain why “2 is the oddest prime” is a funny statement.

2. Agenda
Go over warm up
Exploration 5.8 and 5.9

3. 1, 2, 4, 8, 16, 3, 6, 12, 24, 48
48 = 24 • 3
72 = 23 • 32
GCF(48, 72) = 23 • 3 = 24
LCM(48, 72) = 24 • 32 = 144
= 48 • 3 = 72 • 2 = 24 • 6

4. Word Problem Example
Tara can run around the track in 5 minutes. Todd can run the same distance in 6 minutes, and Tony can do it in 8 minutes. If they start at the same time, when will they next meet at the starting line?
(Find the LCM of 5, 6, and 8)
Answer: 120 minutes or 2 hours

5. Explorations Exploration 5.8 Exploration 5.9 Part 1: #1 - 5, 7
Pay extra attention to answering #3: “if [blank] = 1, then sketch a/b”
Pay extra attention to answering #5: “if [blank] = a b/c, then sketch 1”
Exploration 5.9
Part 1: #1 - 3 (divide the indicated shape *differently*), (skip 5c), Part 2 #1, 2; Part 3 # 1