Curated OER
Least Common Multiple
In this least common multiple instructional activity, students review the steps for finding the least common multiple using lists of multiples and prime factorization. Students then list multiples to find the LCM for the given numbers....
Curated OER
Greatest Common Factor: Reteach
In this greatest common factor worksheet, students review the different ways to find the greatest common factor for numbers including listing all the factors and finding prime factorization with factor trees. Students then list the...
Curated OER
Factor Trees and GCF
For this prime factorization and greatest common factor worksheet, students use factor trees to find the prime factorization of 8 numbers. They find the GCF of six pairs of numbers.
Curated OER
Prime Factorization with Factor Trees (1 of 2)
Six numbers (12, 32, 50,48,36, and 75) are given to learners to craft factor trees with. The first one is completed as an example in this first of two similar online worksheets. Note that where factorization is an foundational step in...
Curated OER
Greatest Common Factor: Practice
In this greatest common factor worksheet, students list the factors for each number and find the greatest common factor of the numbers. Students then write the prime factorization using exponents of each number and find the greatest...
Curated OER
Prime Numbers and Factors
Solving factor trees is a helpful way to introduce prime numbers. Your math class practices using this method along with two-column tables to find if a number is prime or not. They also learn other vocabulary, such as composite numbers,...
Curated OER
Multiplying and Dividing Fractions and Mixed Numbers
Upper graders study fraction and mixed number division and also review fraction multiplication. For this fraction and mixed numbers lesson, learners work with the teacher in an oral problem solving method to multiply and divide fractions...
Curated OER
Primes and Prime Factors
In this primes and prime factors instructional activity, 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...
Math Mammoth
Factoring and Primes 2
In this factoring learning exercise, students read about prime factorization, factor using factor trees, build numbers from primes and complete a challenge puzzle.
Curated OER
Introducing the Concept Prime Factors
Fifth graders identify the prime factorization for 48 using different sets of factors. They find the prime factorization for 60.
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Prime and Composite Numbers
Fifth graders use prime factorization to identify prime and composite numbers. They use cubes to find factors. In groups, 5th graders draw rectangular arrays to discover prime numbers under 100.
Curated OER
Greatest Common Divisor
In this greatest common divisor activity, students use prime factorization to determine the greatest common factors of two or more numbers. Explanations and examples are provided. This two-page activity contains ten problems.
Curated OER
Prime Factors
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.
Curated OER
Building Venn Diagrams
Students use Venn diagrams to solve prime number and factorization problems. In this multiplication lesson, students watch a video and use a Venn Diagram to help them solve a pizza math activity that uses prime factorization. Students...
Curated OER
Grade 5 Math: Factorization 2
For this grade 5 math worksheet, 5th graders write 8 numbers as the product of their prime factors, using exponents to show multiples of the prime factor when needed.
Curated OER
Transition to algebra
Young scholars 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. Young scholars participate in a bingo activity....
Willow Tree
Factoring Polynomials
Young mathematicians discover trees organize more than just families — they help factor, too. The instructional activity begins with factor trees and develops slowly to factoring by grouping and special patterns.
Super Teacher Worksheets
Prime and Composite
Factoring is an essential component in algebra, and this worksheet prepares learners with a quick reference guide and examples. After they find all the factors, they decipher whether the number is prime or composite.
Curated OER
Prime And Composite Numbers - Fuzoku Elementary
Fourth graders investigate the concept of prime and composite numbers. Students study the visual representation for the numbers and use the pictures in order to develop designs for larger numbers. The goal of the instructional activity...
Helping with Math
Factors With Prime and Composite Numbers (1 of 2)
Math monsters examine nine numbers, factor them, and then determine if they are composite or prime. You can print this worksheet off of the website, but it does not fit neatly onto one page. Consider projecting it on your class screen...
Curated OER
Mastering Math Vocabulary of Prime and Composite Numbers Using Venn Diagrams
Create Venn diagrams. Your class will discover the relationships between even and prime numbers. Next, they will compare that to the relationship between odd and composite numbers.
Curated OER
Factorization
In this algebra worksheet, students factor number using their prime factors. They use a factor tree to help them find their prime numbers as they factor out. There are 20 factoring problems with an answer key.
Curated OER
Using Factor Trees
In this math learning exercise, students read about how to create a factor tree. Students use factor trees to determine the prime factors of 16 numbers.
Curated OER
Factor Trees
In this factor trees worksheet, students make factor trees for 2 through 4 digit numbers. Students complete 20 factor trees for these numbers.