1. Created by Cristina Salas Leal November 16, 2007
Prime Factorization
Created by
Cristina Salas Leal
November 16, 2007

2. Objective
The students will learn to use a factor tree to find the prime factorization of a composite number.
TEKS (6.1D) The student will write prime factorizations using exponents.

3. Math Journal
Write and answer the following questions in your math journal.
Using only one word, how would you define a prime number?
Using only one word, how would you describe a composite number?
What is prime factorization?

4. What is Prime Factorization?
Prime factorization breaks down a number into its prime factors.

5. Prime & Composite
A prime number is a number with exactly two unique factors.
A Composite number is a number with more than two factors.

6. Prime Factorization of 12 = 2 x 2 x 3
Factor Tree
Step 1: Start with a composite number
Step 2: Factor the number
Step 3: Continue factoring composite factors
Prime Factorization of 12 = 2 x 2 x 3

7. Internet Website
Visit this website to learn more about Prime Factorization and then take the quiz.
BrainPOP – click here

8. Practice finding the Prime Factorization using a factor tree
Watch a video clip –
Prime Factorization Video Clip
Factor Tree – NLVM
Solve problems using the this interactive website.

9. Thank you