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...
Alabama Learning Exchange
Finding Prime
Fifth and sixth graders explore prime numbers. They work with a partner to build rectangular arrays using twelve tiles. Factor pairs are noted and recorded on graph paper. Pupils construct rectangular arrays with a prime number and...
Curated OER
Factors vs. Multiples
In this math worksheet, students solve the problems that focus upon factors and multiples. They also explore the rules of divisibility.
Curated OER
My Test Book: Multiples and Factors
In this online interactive math skills worksheet, students solve 10 multiple choice math problems regarding multiples and factors. Students may view the correct answers.
Curated OER
My Test Book: Multiples and Factors
In this online interactive math skills instructional activity, students solve 10 multiple choice math problems regarding multiples and factors. Students may submit their answers to be scored.
Curated OER
Relating GCF and LCM for Grade Six
In this relating GCF and LCM for Grade Six worksheet, 6th graders answer ten multiple choice questions about factors and multiples, with answers available onscreen.
Curated OER
Multiples
In this multiples instructional activity, middle schoolers complete multiple choice questions about multiples of a number and common factors of numbers. Students complete 10 questions.
Curated OER
Factors of Composite Numbers
Students find the factors to composite numbers. In this factor lesson, students discuss the definition of a composite number and how to find the factors. They complete a worksheet where they find the factors of multiple composite numbers.
Bowland
The Z Factor
Young mathematicians determine the number of hours it would take judges of the "Z Factor" television talent show to watch every act. Participants make estimates and assumptions to solve the problem.
Curated OER
Divisibility Rules Using Scientific Calculators
Young learners apply divisibility rules to determine if a number is a factor of another number. They discuss what numbers are factors of another number and identify patterns using divisibility rules.
Curated OER
Highest Common Factor and Lowest Common Multiple
In this factors and multiples worksheet, students solve 50 problems in which the greatest common factor (GCF) and the lowest common multiple (LCM) are calculated. This page is intended for online use but may be completed on paper.
Curated OER
Mission: Finding the LCM using Prime Factorization
For 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
Common Factors
In this common factors worksheet, 6th graders solve 20 different problems that include various types of common factors. First, they determine the greatest common factor for each pair of numbers listed. Then, students determine the least...
Curated OER
LCM of 3 Numbers: Factor Trees
In this lowest common multiples worksheet, students create factor trees to find the lowest common multiple of 3 numbers. Students complete 4 problems.
Curated OER
My Test Book: Multiples and Prime Factorization
For this math skills worksheet, students solve 10 multiple choice math problems regarding prime factorization and multiples. Students may view the correct answers.
Curated OER
Greatest Common Factor and Division
In this greatest common factor and division instructional activity, students answer word problems about the greatest common factor and division of numbers. Students complete 10 multiple choice questions.
Curated OER
My Test Book: Factors and Prime Numbers
In this online interactive math skills worksheet, students solve 10 multiple choice math problems regarding factors and prime numbers. Students may submit their answers to be scored.
Curated OER
Least Common Multiple: Post Test
For this least common multiple worksheet, students answer multiple choice questions about the least common multiple of numbers and rules on how to find it. Students complete 10 questions total.
Curated OER
Multiples Worksheet (2 of 2)
In this multiples practice worksheet, students examine eight 1 and 2-digit numbers. Students record the first 8 multiples for each of the numbers. An example is provided.
Helping with Math
Factors with Prime and Composite Numbers (2 of 2)
Ten two-digit numbers are listed for fourth graders to factor. Once they have factored each, they circle whether the original number is prime or composite. If you click on the "Print Worksheet" button, the printable spreads the problems...
Curated OER
Factors
Practice factoring numbers by using graph paper, manipulatives and computer applets.
Curated OER
Factors and Multiples
Sixth graders need to see the relevance in the mathematics they learn. This lesson builds on the concepts of least common multiple and greatest common factor. The lesson presents real-world problem situations for students to solve.
Curated OER
Mighty Multiples
Students study about multiples, common multiples, least common multiples, and lowest common denominators. They recognize that a multiple is the product resulting when two or more factors are multiplied by each other and that common...
Curated OER
Unit 2: Factors
In this factors worksheet, students identify prime numbers. They use a Sieve of Eratosthenes to identify prime numbers. Students complete factor trees and explore perfect numbers. This factoring unit contains eight pages. Each page...
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