42 Prime Factorization

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4-2 Prime Factorization

• Created by
• Leslie Lause
• Owensville Middle School
• 7th grade Mathematics

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Objective

• MA-NO-1-D-07
• General Objective
• The students will classify and describe numeric
  relationships.
• Specific Objective
• The student will use whole number factors to
  describe the relationships between and among
  numbers.

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Concept map

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Words to know AKA Definitions

• Prime numbers- whole number greater than 1 that
  is only divisible by itself and 1.
• Composite Numbers whole number greater than 1
  that has more than 2 factors
• Prime Factorization expressing a composite
  number as a product of prime numbers

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Methods for finding Prime Factorization

• Factor Tree 460
• 460
• 10 46
• 2 5 23 2
• 22523
• 2²523

• Division 460
• 460 592
• 92246
• 46223
• 23231
• 22523
• 2²523

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ExamplesFind the prime factorization of the
following

• Factor tree method.
• 333

• Division method
• 333

On-line practice
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Homework

• Pg 140 14-36 even
• Wks 24

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Citations

• http//www.learnalberta.ca/Launch.aspx?content2f
  content2fmesg2fhtml2fmath6web2fmath6shell.html
  
• http//amby.com/educate/math/2-1_fact.html