Prime Factoization Teacher Resources

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Fifth graders identify the prime factorization for 48 using different sets of factors. They find the prime factorization for 60.
Learners work with prime numbers. In this prime factorization lesson, students review writing numbers in their prime factorization form and solve multiple problems.
In this prime factorization and divisibility rules instructional activity, students find the prime factorization for numbers and explore the divisibility rules for 2, 3, 4, 5, 6, ,9, and 10 in fifty-one problems.  The solutions are not provided.
In this primes and prime factors learning exercise, 8th graders solve 21 different problems to include identifying each number as prime, composite, or neither prime nor composite and listing all the primes less than 200. Then they complete each of 4 factor trees shown and write the number as the product of prime numbers. Students also determine the GCF and LCM of various number.
Students recognize the difference between a prime and a composite number.  In this prime and composite number lesson, students  use a factor tree model to show prime factorization. Students participate in a bingo activity. Students complete a homework worksheet.
Ninth graders work with composite numbers to find their prime factorizations. In this Algebra I lesson, 9th graders use factor trees and division to find the prime factors of a number. Students explore the use of prime factors to determine the GCF and LCM. TI-nspire handheld required.
Students model factors using tiles and grid paper. They differentiate between prime and composite factor trees. Students illustrate prime factorization using factor trees. They are given 12 tiles or cut-out paper squares. Students create a rectangle using the tiles or squares.
Students complete math problems. In this prime factorization and exponents lesson plan, students learn how to express factors using exponents, practice prime factorization and complete practice problems for both.
In this prime factorization worksheet, 5th graders complete multiple choice problems where they find the prime factorization of numbers up to number 4632. Students complete 15 problems.
Fifth graders examine prime and composite numbers and prime factorization. They define prime and composite numbers, view a teacher demonstration, then demonstrate prime factorization using small squares of construction paper.
In this prime factors worksheet, students make six factor trees. They tell the prime factorization for eight numbers. Students answer three questions regarding the prime factorization of numbers.
Students investigate the prime factorization of composite numbers.  In this fifth and sixth grade mathematics lesson, students use the TI-73 calculator to find the prime factorization of a number and use that information to simplify fractions.  Students write repeated factors in exponential form.
Factoring 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, composite numbers, and prime factorization are all covered, and there's an ample supply of practice problems for learners to try their hands at. Very good!
Sixth graders use the prime factorization of numbers to find the greatest common factor and least common multiple. Working in small groups, they solve problems using the greatest common factor and least common multiple.
Seventh graders examine Prime Factorizations, Multiples, and Factors. In this prime number, factorization, and multiples lesson plan, 7th graders identify greatest common factors and least common multiples. Students use problem solving skills to explore prime numbers, multiples and factorization.
Fifth graders review the concept of prime factorization. Then, they use the rules for divisibility and other notions to find the prime factorization of unfamiliar numbers. They solve problems in a whole class setting.
Students research prime and composite numbers. With a partner, students use graph paper to draw rectangles of various sizes. They list the dimensions of rectangles and discuss how the dimensions relate to the factors of each number. Students perform the prime factorization of numbers. They find the Greatest Common Factor (GCF) of numbers.
Sixth graders participate in a lesson that focuses on the concept of finding the prime factorization of a number. They write the answer using exponential notation. Students play a game of Bingo to keep engaged during the lesson.
For this factors and prime factorization worksheet, 6th graders use examples to find all the factors for six numbers, then write six more numbers as products of prime factorization.
In this prime factor worksheet, learners write numbers as a product of primes. Explanations and examples are provided prior to the exercise. This two-page worksheet contains ten problems.

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