Download Chapter 2 Lesson 1.notebook

Chapter 2 Lesson 1.notebook
September 27, 2013
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Chapter 2 Lesson 1.notebook
September 27, 2013
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Chapter 2 Lesson 1.notebook
September 27, 2013
Vocabulary Review
Prime Numbers and Composite Numbers
What are they?
Can you give an example of each?
Prime Number: A number with only 2 factors­ 1 and itself
Example: 23 is a prime number. It is only divisible by 1 and 23
Composite Number: A number with MORE than 2 factors
Example: 8 is a composite number. It is divisible by 1,2,4, and 8
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Chapter 2 Lesson 1.notebook
September 27, 2013
We need to be able to recognize prime
numbers in order to find the prime factors
of a number.
We call this process prime factorization.
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Chapter 2 Lesson 1.notebook
September 27, 2013
Prime Factorization Example
Steps:
Step 1: Write the number
to be factored at the top.
Step 2: Choose any pair of
whole number factors
Step 3: Circle prime
numbers. Continue to
factor any number that is
not prime.
Continue factoring until all
numbers are prime
numbers.
Step 4:Check by
multiplying your prime
numbers.
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Chapter 2 Lesson 1.notebook
September 27, 2013
Let's Try Another One!
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Steps:
Step 1: Write the number to be factored at the top.
Step 2: Choose any pair of whole number factors
Step 3: Circle prime numbers. Continue to factor
any number that is not prime.
Continue factoring until all numbers are prime numbers.
Step 4:Check by multiplying your prime numbers.
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Chapter 2 Lesson 1.notebook
September 27, 2013
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Chapter 2 Lesson 1.notebook
September 27, 2013
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Chapter 2 Lesson 1.notebook
September 27, 2013
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Chapter 2 Lesson 1.notebook
September 27, 2013
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Chapter 2 Lesson 1.notebook
September 27, 2013
Prime Factorization Steps:
Step 1: Write the number to be factored at the top.
Step 2: Choose any pair of whole number factors
Step 3: Circle prime numbers. Continue to factor any number that is not prime.
Continue factoring until all numbers are prime numbers.
Step 4:Check by multiplying your prime numbers.
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