1 / 10

Today’s Plan: -Warm up & Notebook Check -Prime Factorization -Practice

9/9/10 Prime Factorization. A prime number is a whole number greater than 1 that has exactly two factors, 1 and itself. A composite number is a whole number that has more than two factors. Entry Task

martin-butler
Download Presentation

Today’s Plan: -Warm up & Notebook Check -Prime Factorization -Practice

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 9/9/10 Prime Factorization A prime number is a whole number greater than 1 that has exactly two factors, 1 and itself. A composite number is a whole number that has more than two factors. Entry Task Copy the above vocabulary words into your notes. Then list at least 5 examples of prime numbers and at least 5 examples of composite numbers. Prime Composite Today’s Plan: -Warm up & Notebook Check -Prime Factorization -Practice Learning Target: -I will draw factor trees to find the prime factorization of composite numbers.

  2. 9/9/10 Prime Factorization A prime number is a whole number greater than 1 that has exactly two factors, 1 and itself. A composite number is a whole number that has more than two factors. The number 1 has exactly one factor and is neither prime nor composite. A composite number can be written as the product of its prime factors. This is called the prime factorization of the number. Today’s Plan: -Warm up & Notebook Check -Prime Factorization -Practice Learning Target: -I will draw factor trees to find the prime factorization of composite numbers.

  3. 9/9/10 Prime Factorization • Copy this number chart and follow steps 1-4. • Circle the number 2. Then cross out all multiples of 2. • Circle the number 3. Then cross out all multiples of 3. 3. Circle the number 5. Then cross out all multiples of 5. 4. Circle any number remaining if its only factors are itself and 1, cross out the others. Today’s Plan: -Warm up & Notebook Check -Prime Factorization -Practice Learning Target: -I will draw factor trees to find the prime factorization of composite numbers.

  4. 9/9/10 Prime Factorization You should have circled the PRIME NUMBERS! A prime number is a whole number greater than 1 that has exactly two factors, 1 and itself. Three is a prime number because its only factors are 1 and 3. Today’s Plan: -Warm up & Notebook Check -Prime Factorization -Practice Learning Target: -I will draw factor trees to find the prime factorization of composite numbers.

  5. 9/9/10 Prime Factorization Notebook Check Take out a highlighter, colored pen, or colored pencil. Name, date, class, teacher Work on graph paper in pencil Headings Table of Contents Multiplication symbols Exponent notes Exponent example PEMDAS notes Order of operations example Prime number list Today’s Plan: -Warm up & Notebook Check -Prime Factorization -Practice Learning Target: -I will draw factor trees to find the prime factorization of composite numbers.

  6. 9/9/10 Prime Factorization Write the prime factorization of the number. A. 24 Write 24 as the product of two factors. 24 8 · 3 Continue factoring until all factors are prime. 4 · 2 · 3 2 · 2 · 2 · 3 The prime factorization of 24 is 2 · 2 · 2 · 3. Using exponents, you can write this as 23 · 3. (Write numbers from least to greatest!) Today’s Plan: -Warm up & Notebook Check -Prime Factorization -Practice Learning Target: -I will draw factor trees to find the prime factorization of composite numbers.

  7. 9/9/10 Prime Factorization Write the prime factorization of the number. B. 150 150 Write 150 as the product of two factors. 30 · 5 Continue factoring until all factors are prime. 10 · 3 · 5 2 · 5 · 3 · 5 The prime factorization of 150 is 2 · 3 · 5 · 5, or 2 · 3 · 52. Today’s Plan: -Warm up & Notebook Check -Prime Factorization -Practice Learning Target: -I will draw factor trees to find the prime factorization of composite numbers.

  8. 9/9/10 Prime Factorization Write the prime factorization of the number. A. 36 Write 36 as the product of two factors. 36 18 · 2 Continue factoring until all factors are prime. 9 · 2 · 2 3 · 3 · 2 · 2 The prime factorization of 36 is 2 · 2 · 3 · 3. Using exponents, you can write this as 22 · 32. Today’s Plan: -Warm up & Notebook Check -Prime Factorization -Practice Learning Target: -I will draw factor trees to find the prime factorization of composite numbers.

  9. 9/9/10 Prime Factorization Write the prime factorization of the number. B. 90 90 Write 90 as the product of two factors. 45 · 2 Continue factoring until all factors are prime. 9 · 5 · 2 3 · 3 · 5 · 2 The prime factorization of 90 is 2 · 3 · 3 · 5, or 2 · 32 · 5. Today’s Plan: -Warm up & Notebook Check -Prime Factorization -Practice Learning Target: -I will draw factor trees to find the prime factorization of composite numbers.

  10. 9/9/10 Assignment #4: Prime Factorization Prime Factorization: pg 80 #5-20 OR Challenge pg 80 #25-32, 41-44, 47-50 When you finish try to solve #55 Today’s Plan: -Warm up & Notebook Check -Prime Factorization -Practice Learning Target: -I will draw factor trees to find the prime factorization of composite numbers.

More Related