Pre-Algebra Lesson 4-5

# Pre-Algebra Lesson 4-5 - 4-5 Greatest Common Factor...

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4-5 Greatest Common Factor Objective: Find the greatest common factor of two or more integers or monomials.

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5-Minute Check Factor each number or monomial completely. 1. 108
5-Minute Check Factor each number or monomial completely. 1. 108 2*2*3*3*3

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5-Minute Check Factor each number or monomial completely. 1. 108 2. 117
5-Minute Check Factor each number or monomial completely. 1. 108 2. 117 3*3*13

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5-Minute Check Factor each number or monomial completely. 1. 108 2. 117 3. -88
5-Minute Check Factor each number or monomial completely. 1. 108 2. 117 3. -88 -2*2*2*11

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5-Minute Check Factor each number or monomial completely. 1. 108 2. 117 3. -88 4. 72x 2 y
5-Minute Check Factor each number or monomial completely. 1. 108 2. 117 3. -88 4. 72x 2 y 2*2*2*3*3*x*x*y

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5-Minute Check Factor each number or monomial completely. 1. 108 2. 117 3. -88 4. 72x 2 y 5. -25xy 4
5-Minute Check Factor each number or monomial completely. 1. 108 2. 117 3. -88 4. 72x 2 y 5. -25xy 4 -5*5*x*y*y*y*y

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4-5 Greatest Common Factor Example a. Use prime factorization to find the GCF of 42 and 70.
4-5 Greatest Common Factor

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