2. Write down HomeworkWarm Up What is the Greatest Common Factor of the following numbers: 1. 24 and 32 2. 100 and 150

3. Corny Joke of the Day What did the Atlantic Ocean say to the pacific ocean? Nothing they just waved

4. When is the Test??!?!

5. “To the Computer & Beyond” What questions do you have?!?!?!

6. Finish Quiz Answer Sheet on top Silent read until everyone is finished Keep folders up please 

7. Table of Contents Error Prime Factorization should say: pages 5 and 6 Musical Math Cards should say: Page 7

8. Table of Contents Date: 8/16 Section: 4-3 Title: Greatest Common Factor Pages: 8 & 9

9. Did you Know that there is another way to find Prime Factorization?!?!

10. Method 2 Ladder Diagram Divide number by prime factors until the quotient is 1.

11. Just Watch Use a ladder diagram. Choose a prime factor of 36 to begin. Keep dividing by prime factors until the quotient is 1. 3 36 3 36 12 12 2 3 6 4 2 2 2 3 2 3 1 1 36 = 3 • 2 • 2• 3 36 = 3 • 3 • 2 • 2 The prime factorization of 36 is 3 • 2 • 2 • 3, or 32 • 23.

12. You Try! Prime factorization of 45 Choose a prime factor of 45 to begin. Keep dividing by prime factors until the quotient is 1. 3 45 5 45 15 9 3 3 5 3 5 3 1 1 45 = 3 • 3 • 5 45 = 5 • 3 • 3 The prime factorization of 45 is 3 • 3 • 5 or 32• 5 .

13. Which one do you like better?!?!

14. Getting to know your partner I want you to turn to the person sitting next to you and come up with at least 4 things that you both like  Are these commonalities more like: Factors or Multiples What is one thing that we all like?

15. Question of the Day How’d you solve today’s warm up? What is the Greatest Common Factor of the following numbers: 1. 24 and 32 2. 100 and 150

16. Method 1: Rainbow List all factors in a sequence and see which factor is the greatest 26 34

17. Method 2: Prime Factorization And 32

18. 45 18 27 15 6 9 Method 3: Ladder Diagram 45, 18, and 27 3 Begin with a factor that divides into each number. Keep dividing until the three have no common factors. 3 5 2 3 Find the product of the numbers you divided by. 3• 3 = 9 The GCF of 45, 18, and 27 is 9.

19. You try! Find the GCF 36 and 132 21 and 63 100 and 50

20. Challenge Find the GCF 18, 39, and 42

21. Worktime!Worksheet: 5.4