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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

- 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.
- 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.
- Factor Trees (1) - Find the prime factorization by completing the basic factor trees, answers included on page two
- Factor Trees (2) - More basic factor trees for teaching prime factorization, answers included on page two
- Factor Trees (3) - Complete these factor trees to reduce a number into its prime factors, answers included on page two
- Factor Trees (4) - More factor trees for prime factorization, answers included on page two
- Factorization Forest - a game in which students can practice their prime factorization skills.
- Finding Factors - list the factors for the given numbers, answers included on page two
- Finding Factors of a Number - [9:53] video lesson explaining the concept
- Greatest Common Factor - explanation, examples and practice problems, answers included on page two
- Greatest Common Factor - find the GCF for eighteen pairs of numbers
- Interactive Factor Tree Game - Find all prime factors of a composite number with our Factor Tree. This interactive game requires Adobe Flash Player.
- Prime Factors - two part lesson plan; introducing the idea and developing the concept
- Prime Factoring - [game with 3 levels] Help Professor Super save the planet by cookiing the Giant Frozen Rubber Turkeys of Destruction
- Prime Factorization - [4:09] video lesson explaining the concept
- Prime Factorization - Brain Pop video or quiz provided by Glencoe
- Prime Factorization - explanation of two ways to do the factorization with examples, followed by seven practice exercises to check student understanding
- Prime Factorization - explanation and examples; at the bottom of the page there are links to six practice questions to check student understanding
- Prime Factorization - interactive practice (multiple choice quiz)
- Prime Factorization Calculator - Enter whatever number you want and then choose which operation you want the prime factorization calculator to perform.
- Prime Factorization: Prime Numbers - enter a natural number to be factorized
- 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.
- 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
- Recognizing Prime Numbers - [4:40] video lesson explaining the concept

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