1. Lesson 4-3 Pages 159-163 Prime Factorization Lesson Check 4-2

2. What you will learn! 1. How to write the prime factorization of composite numbers. 2. How to factor monomials.

3. Prime number Composite number Prime factorization Factor tree Factor

4. What you really need to know! A prime number is a whole number that has exactly two factors, 1 and itself. A composite number is a whole number that has more than two factors. Zero and 1 are neither prime nor composite.

5. What you really need to know! Any composite number can be written as a product of prime numbers. A factor tree can be used to find the prime factorization.

6. What you really need to know! In algebra, monomials can be factored as a product of prime numbers and variables with no exponents greater than 1. 8x 2 = 222xx

8. Example 1: Determine whether the number is prime or composite: 31 Factors 1 31 Prime!

9. Example 2: Determine whether the number is prime or composite: 36 1 36 2 18 3 12 4 9 6 Composite!

10. Example 3: Write the prime factorization of 56.

11. 56 87 742 7 222 237237

12. Example 4: Factor the monomial: 16p 2 q 4

13. 16 82 242 2 222

14. Example 4: Factor the monomial: 16p 2 q 4 2222ppqqqq

15. Example 4: Factor the monomial: -21x 2 y -137xxy

16. Page 162 Guided Practice #’s 4-13

18. Pages 159-161 with someone at home and study examples! Read:

19. Homework: Pages 162-163 #’s 14-44 even #’s 47-63 Lesson Check 4-3

23. Page 731 Lesson 4-3

24. Lesson Check 4-3