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.
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.
Scholastic
Study Jams! Greatest Common Factor
When one method isn't enough to teach GCF, try two! This interactive webpage introduces factors and the prime factor tree to find the greatest common factor of two numbers. After the lesson, have learners click to try the two examples...
Scholastic
Study Jams! Prime Factorization
Deepen 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...
Curated OER
Prime Factorize
In this factorization worksheet, students prime factorize six numbers by using the factor tree method. The numbers given go up to the number 24.
Curated OER
Factors, Primes, Squares
Teach the joys of factoring and introduce prime and square numbers. Upper elementary learners are introduced to these concepts through complete definitions, examples, and practice problems. A variety of strategies, such as factor trees...
Curated OER
Prime Factorization - Practice 7-2
Finding the prime factors of two numbers is the focus of this math worksheet. Students write the factors to complete 2 factor trees, write the prime factorization for 9 numbers and answer 2 word problems.
Curated OER
Prime Factorization
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,...
Curated OER
Prime Factorization Worksheet
Here's a prime factorization practice worksheet in which learners sharpen their problem solving skills as they solve six story problems.
Math Learning Center
Grade 5 Supplement Set A2 – Number and Operations: Primes, Composites and Common Factors
Incorporate riddles into your math lesson by having students make tree factors and determine if the number is a prime or composite. They will also use other clues to find the answer to the riddle while sharpening their multiplication...
Helping with Math
Prime Factorization with Factor Trees (2 of 2)
The publisher has tagged this resource as designed to meet CCSS.Math,Content.6.NS.4, but it really is only the first step in the process of determining least common multiples and greatest common factors. Six numbers are given for...
Curated OER
Make a Factor Tree
In this factoring activity, learners solve 9 problems in which a two or three digit number is factored using a factor tree. Each number is in its own box. There are no examples.
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
Prime Factorization: Finding Factors in the Fifth Grade
The 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...
Curated OER
Prime Factorization
In this prime factorization worksheet, students complete factor trees for 2 digit numbers to find their prime factorization. Students complete 6 problems.
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.
Scholastic
Study Jams! Least Common Multiple
RJ instructs your sixth graders in two different methods of determining least common multiples. The first is by listing several multiples of each number, and the second is by drawing factor trees. This is an ideal flipped classroom...
CK-12 Foundation
Prime and Composite Numbers
Nine true or false, multiple-choice, and discussion questions make up an interactive designed to reinforce scholars' knowledge of prime and composite numbers. A number chart reveals every prime number through 100.
Curated OER
Prime Factorization
In these prime factorization worksheets, students make a factor tree of the given numbers and then write the answers using exponential notation. Students then use multiplication to check their factoring work. Students evaluate the...
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
Mission: Finding the LCM using Prime Factorization
In this prime factorization worksheet, students find the least common multiple of the given pair of numbers using factor trees. Students solve 10 problems.
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
Missing Factors
Students explore factors. They discuss factors, factor trees and prime factors. Students practice working with and finding various factors and prime factors. They discuss methods used to find factors.
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...