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Instructional Video4:09
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\n\"Prime\n\n
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\nKhan Academy\n
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\nPrime Factorization, Factors and Multiples, Pre-Algebra\n

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\n\nFor Students\n\n5th - 7th\n
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\nOlder elementary students will appreciate how clearly Sal explains how to find the prime factorization of 75. He shows the complete process, taking note of numbers that are and are not primes, and why.\n
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Instructional Video2:33
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\n\"How\n\n
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\nCurated OER\n
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\nHow Do You Find the Prime Factorization of a Number Using a Tree?\n

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\n\nFor Teachers\n\n6th - 8th\n
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\nA factor tree? What's a factor tree? A tree of factors? A factor tree is a method use to do the prime factorization of an integer. It's not complicated. Watch the teacher as she explains the steps and shows how to write the answer as a...\n
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Instructional Video2:15
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\n\"How\n\n
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\nCurated OER\n
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\nHow Do You Find the Greatest Common Factor of Two Numbers Using Prime Factorization?\n

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\n\nFor Teachers\n\n6th - 8th\n
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\nHere's a quick review on how to use a prime factor tree to find the greatest common factor of two numbers. This is one of the simplest ways to find the greatest common factor. So watch this video to get a refresher on how to do prime...\n
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PPT
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\n\"Prime\n\n
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\nCurated OER\n
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\nPrime Factorization\n

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\n\nFor Teachers\n\n4th - 5th\n\nStandards\n
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\nFactoring is an important math skill, and it's often quite confusing for youngsters. This presentation does a good job of showing the basic skills and vocabulary needed to begin to understand this important process. Prime numbers,...\n
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Instructional Video4:44
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\n\"Prime\n\n
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\nKrista King Math\n
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\nPrime Factorization and Product of Primes\n

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\n\nFor Students\n\n3rd - 7th\n\nStandards\n
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\nDemonstrate a method for finding the prime factorization of numbers using factor trees and a video that explains how to break a number down to its prime factors. The instructor reinforces the concept of factors by displaying the...\n
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Instructional Video5:33
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\n\"What\n\n
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\nMath Playground\n
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\nWhat is Prime Factorization?\n

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\n\nFor Teachers\n\n4th - 5th\n\nStandards\n
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\nA teacher describes how to find the prime factors of 525. She starts by describing how to use a factor tree to describe the factors of a number. Next, she uses increasingly difficult examples to illustrate this concept.\n
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Interactive
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\n\"Study\n\n
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\nScholastic\n
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\nStudy Jams! Prime Factorization\n

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\n\nFor Students\n\n4th - 6th\n\nStandards\n
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\nDeepen the number sense of young mathematicians by exploring the process of prime factorization. Follow along with this step-by-step presentation that explains how factor trees are used to break a composite number down into its prime...\n
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Worksheet
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\n\"Chapter\n\n
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\nCurated OER\n
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\nChapter 2 Review: Prime Factorization\n

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\n\nFor Students\n\n6th - 8th\n
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\nIn this prime factorization worksheet, learners find the prime factorization of numbers by using a factor tree. They compare fractions and identify equivalent fractions, and find the greatest common factor, order numbers, and convert...\n
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Worksheet
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\n\"Exponents\n\n
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\nCurated OER\n
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\nExponents and Prime Factorization\n

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\n\nFor Students\n\n6th - 7th\n
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\nIn this exponents and prime factorization practice worksheet, learners sharpen their problem solving skills as they solve six story problems.\n
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Worksheet
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\n\"Prime\n\n
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\nPrime Factorization Worksheet\n

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\n\nFor Students\n\n4th - 6th\n
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\nHere's a prime factorization practice worksheet in which learners sharpen their problem solving skills as they solve six story problems.\n
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Interactive
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\n\"Prime\n\n
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\nCK-12 Foundation\n
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\nPrime Factorization: Chocolate Chip Factoring\n

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\n\nFor Students\n\n6th\n\nStandards\n
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\nAn interactive resource challenges mathematicians to show what they know about prime factorization. Five multiple-choice, true or false, and discussion questions use chocolate chip cookies to set a real-world application of the...\n
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Instructional Video7:55
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\n\"Common\n\n
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\nKhan Academy\n
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\nCommon Divisibility Examples, Factors and Multiples, Pre-Algebra\n

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\n\nFor Students\n\n7th - 9th\n
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\nEquipped with several examples from the attached module and from standardized tests, Sal takes viewers through the process of prime factorization and divisibility. He demonstrates each skill several times with many different numbers,...\n
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Worksheet
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\n\"Math\n\n
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\nCurated OER\n
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\nMath in English Skills X Exercise Book\n

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\n\nFor Students\n\n1st - 6th\n
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\nProvide your remedial math students with a handy packet that will help them practice prime factorization, exponents and roots, and multiplication and division of fractions. The packet includes 20 pages, bright images, and answer keys....\n
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Interactive
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\n\"Prime\n\n
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\nPrime Factorization\n

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\n\nFor Students\n\n6th - 8th\n
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\nFor this prime factorization worksheet, middle schoolers solve 7 multiple choice problems. Students find the prime factorization of 91, 84, 78, 70, 67,63, and 36.\n
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Lesson Plan
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\n\"Find\n\n
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\nCurated OER\n
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\nFind the Factors and Prime Factors\n

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\n\nFor Teachers\n\n4th - 6th\n
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\nShow the class how to find the factors of numbers. They use a variety of strategies, including unifix cubes, to find the factors of a whole number. This resource includes clear procedure to follow. Included are an anticipatory set,...\n
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Instructional Video3:03
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\nCurated OER\n
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\nHow Do You Find the Greatest Common Factor If There are No Common Factors?\n

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\n\nFor Teachers\n\n6th - 9th\n
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\nUse prime factorization to find the greatest common factor of three given values. Okay. But what if there doesn't seem to be any integer that is common in all three given values? Well, then, the greatest common factor must be 1. Not sure...\n
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Instructional Video1:58
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\n\"How\n\n
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\nHow Do You Find the Greatest Common Factor of Three Numbers?\n

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\n\nFor Teachers\n\n6th - 8th\n
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\nUse prime factorization to find the greatest common factor of three given values. What are the factors that all three given numbers have in common? Identify them, and then multiply together to get the greatest common factor. Just like...\n
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Instructional Video3:52
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\n\"How\n\n
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\nCurated OER\n
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\nHow Do You Find the Greatest Common Factor of Monomials?\n

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\n\nFor Teachers\n\n7th - 9th\n
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\nUse prime factorization to find the greatest common factor of four given values. What are the factors that all four given values have in common? Identify them, and then multiply together to get the greatest common factor. Just like that....\n
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Instructional Video9:59
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\n\"SAT\n\n
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\nKhan Academy\n
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\nSAT Prep: Test 2 Section 3 Part 4\n

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\n\nFor Students\n\n9th - 12th\n
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\nSAT test-takers get to review median numbers, perimeters, right angles, slopes, and prime factorization in this video, which focuses on problems 13-16. Sal's even pace and methodical problem solving will bolster the confidence of even...\n
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Instructional Video
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\nSAT Prep: Test 5 Section 3 Part 5\n

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\n\nFor Students\n\n9th - 12th\n
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\nProblem 15 on the practice SAT (page 657) prompts students to solve a word problem using a number of given constraints. Additional problems involve finding the radius of a circle (given the radius of a smaller circle) and prime...\n
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Interactive
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\n\"Prime\n\n
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\nPrime Factorizations - Post Test\n

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\n\nFor Students\n\n4th - 5th\n
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\nIn this prime factorizations worksheet, students complete a set of 10 multiple choice questions. Students may print out the test or click on a link to see answers.\n
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Worksheet
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\n\"Prime\n\n
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\nPrime Factorize\n

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\n\nFor Students\n\n5th - 6th\n
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\nIn this prime factorization worksheet, students use skills to find the prime factorization of the given numbers. An answer sheet is included.\n
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Worksheet
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\n\"Prime\n\n
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\nPrime Factorize\n

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\n\nFor Students\n\n6th - 8th\n
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\nIn this prime factorization learning exercise, students prime factorize ten given numbers. The numbers range from 6 to 25.\n
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Lesson Plan
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\n\"Prime\n\n
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\nPrime Factorization: Finding Factors in the Fifth Grade\n

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\n\nFor Teachers\n\n5th\n
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\nThe lesson starts out with a brain drain, which is a great way to get students to activate prior knowledge and build lasting connections. They tell everything they know about prime factorization, use their knowledge to...\n
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