today’s plan: -warm up & notebook check -prime factorization -practice
DESCRIPTION
9/9/10Prime 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 - PowerPoint PPT PresentationTRANSCRIPT
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.
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
A composite number is a whole number that has more than two factors.
A prime number is a whole number greater than 1 that has exactly two factors, 1 and itself.
9/9/10 Prime Factorization
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.
A prime number is a whole number greater than 1 that has exactly two factors, 1 and itself.
9/9/10 Prime Factorization
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.
Copy this number chart and follow steps 1-4.
1. Circle the number 2. Then cross out all multiples of 2.
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.
9/9/10 Prime Factorization
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.
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.
9/9/10 Prime Factorization
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.
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.
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
9/9/10 Prime Factorization
Write the prime factorization of the number.
A. 2424
8 · 3
4 · 2 · 3
2 · 2 · 2 · 3
Write 24 as the product oftwo factors.
Continue factoring until allfactors are prime.
The prime factorization of 24 is 2 · 2 · 2 · 3. Usingexponents, you can write this as 23 · 3.(Write numbers from least to greatest!)
9/9/10 Prime Factorization
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.
Write the prime factorization of the number.
B. 150150
30 · 5
10 · 3 · 5
2 · 5 · 3 · 5
Write 150 as the productof two factors.
Continue factoring until all factors are prime.
The prime factorization of 150 is 2 · 3 · 5 · 5, or2 · 3 · 52.
9/9/10 Prime Factorization
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.
Write the prime factorization of the number.
A. 3636
18 · 2
9 · 2 · 2
3 · 3 · 2 · 2
Write 36 as the product oftwo factors.
Continue factoring until allfactors are prime.
The prime factorization of 36 is 2 · 2 · 3 · 3. Usingexponents, you can write this as 22 · 32.
9/9/10 Prime Factorization
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.
Write the prime factorization of the number.
B. 9090
45 · 2
9 · 5 · 2
3 · 3 · 5 · 2
Write 90 as the productof two factors.
Continue factoring until all factors are prime.
The prime factorization of 90 is 2 · 3 · 3 · 5, or2 · 32 · 5.
9/9/10 Prime Factorization
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.
9/9/10
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.