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5th Grade - Prime Factorization

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Use the prime factorization of two whole numbers to determine the greatest common factor and the least common multiple. 0506.2.2


Links verified on 12/7/2011


  1. Factoring Worksheets for Prime Factorization - Create an unlimited supply of free printable factoring worksheets here. The problem sheets are randomly generated so unique each time. This link includes something for the teacher to print
  2. Factor Trees, GCF, and LCM - Find the prime factorization of numbers by completing factor trees. Then use a Venn diagram to sort the prime factors. Multiply numbers in the intersection to find the greatest common factor. Multiply all of the numbers in the Venn diagram to find the least common multiple. This site is interactive and allows students to play a game or input or collect data
  3. Factor Trees (1) - Find the prime factorization by completing the basic factor trees, answers included on page two This link includes something for the teacher to print An Adobe Acrobat document in .pdf format
  4. Factor Trees (2) - More basic factor trees for teaching prime factorization, answers included on page two This link includes something for the teacher to print An Adobe Acrobat document in .pdf format
  5. Factor Trees (3) - Complete these factor trees to reduce a number into its prime factors, answers included on page two This link includes something for the teacher to print An Adobe Acrobat document in .pdf format
  6. Factor Trees (4) - More factor trees for prime factorization, answers included on page two This link includes something for the teacher to print An Adobe Acrobat document in .pdf format
  7. Factorization Forest - a game in which students can practice their prime factorization skills. This site is interactive and allows students to play a game or input or collect data
  8. Finding Factors - list the factors for the given numbers, answers included on page two This link includes something for the teacher to print An Adobe Acrobat document in .pdf format
  9. Finding Factors of a Number - [9:53] video lesson explaining the concept A video is available through this link
  10. Greatest Common Factor - explanation, examples and practice problems, answers included on page two This link includes something for the teacher to print An Adobe Acrobat document in .pdf format
  11. Greatest Common Factor - find the GCF for eighteen pairs of numbers This link includes something for the teacher to print An Adobe Acrobat document in .pdf format
  12. Interactive Factor Tree Game - Find all prime factors of a composite number with our Factor Tree. This interactive game requires Adobe Flash Player. This site is interactive and allows students to play a game or input or collect data
  13. A resource for the teacher to use in planning their lessonsPrime Factors - two part lesson plan; introducing the idea and developing the concept A lesson plan can be found at this site
  14. Prime Factoring - [game with 3 levels] Help Professor Super save the planet by cookiing the Giant Frozen Rubber Turkeys of Destruction This site is interactive and allows students to play a game or input or collect data
  15. Prime Factorization - [4:09] video lesson explaining the concept A video is available through this link
  16. Prime Factorization - Brain Pop video or quiz provided by Glencoe A video is available through this link
  17. Prime Factorization - explanation of two ways to do the factorization with examples, followed by seven practice exercises to check student understandingThis site includes questions for your students to check their understanding
  18. Prime Factorization - explanation and examples; at the bottom of the page there are links to six practice questions to check student understandingThis site includes questions for your students to check their understanding
  19. Prime Factorization - interactive practice (multiple choice quiz) This site includes questions for your students to check their understanding
  20. Prime Factorization Calculator - Enter whatever number you want and then choose which operation you want the prime factorization calculator to perform. This site is interactive and allows students to play a game or input or collect data
  21. Prime Factorization: Prime Numbers - enter a natural number to be factorized This site is interactive and allows students to play a game or input or collect data
  22. Prime Factorization Table - The table below shows the prime factors of all numbers between 2 and1000. Use this table to validate your work prime number factorization.
  23. Prime Factorization Tool - This tool will work out the prime factorization of a number. The number should be a positive whole number. It currently only works on numbers up to 2,147,483,647
  24. Recognizing Prime Numbers - [4:40] video lesson explaining the concept A video is available through this link



A resource for the teacher to use in planning their lessons site for teachers | A PowerPoint show related to this standard PowerPoint show | An Adobe Acrobat document in .pdf format Acrobat document | A Microsoft Word document to be downloaded Word document | This interactive site would work well on an interactive whiteboard whiteboard resource | This resource includes voice instructions for students sound | A video is available through this link video format | This site is interactive and allows students to play a game or input or collect data interactive lesson | This site includes questions for your students to check their understanding a quiz | A lesson plan can be found at this site lesson plan | This link includes something for the teacher to print to print

 

 

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