Greatest Common Factor Lesson
Presentation
•
Mathematics
•
9th - 12th Grade
•
Hard
James Gonzalez
FREE Resource
15 Slides • 11 Questions
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Factoring: The Greatest Common Factor Lesson
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Examples
Multiply each term inside ( ) by the term in outside
Simplify
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More Examples
Make sure to check the signs when outside term is negative
The signs of the terms inside ( ) will change
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Multiple Choice
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Multiple Choice
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Multiple Choice
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What are factors?
Factors are multiplied to produce a larger value or expression.
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Factor tree
A factor tree show the prime numbers that are multiplied to create a specific value.
Prime numbers...1,2,3,5,7,11,13,19,23,..
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Finding the GCF between two numbers
To find the GCF of two numbers: List the prime factors of each number. Multiply those factors both numbers have in common.
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Multiple Choice
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Multiple Choice
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Multiple Choice
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GCF with exponents
The term with the smallest power is the GCF
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What does it mean "to factor" or to express in a factored form?
Show values or terms that have been multiplied to create a given value or expression.
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Factoring out the Greatest Common Factor or GCF
1. Identify the Greatest Common Factor (GCF) for each term.
2. Divide each term by the GCF.
3. Write the factored form: GCF(Remaining Terms)
The GCF for the example to the right is
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Alternate method
Write each term in expanded form to identify the GCF. The remaining terms are are multiplied and will be inside the ( ) with the GCF outside.
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Fill in the Blanks
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
Factoring: The Greatest Common Factor Lesson
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