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 Factorizations - Post Test
In 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.
Scholastic
Study Jams! Prime & Composite Numbers
Prime or composite, that is the question. Teach your class how to find the answer with this step-by-step presentation that defines and provides examples of each type of number. When addressing larger numbers, divisibility rules are...
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.
CK-12 Foundation
Prime Factorization: Chocolate Chip Factoring
An 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...
CK-12 Foundation
Greatest Common Factor Using Factor Trees
Beginning with a description that sets the stage, learners are asked to break down the numbers 42 and 63 to find the greatest common denominator using factor trees. As they work through the factoring process, young mathematicians are...
Curated OER
Prime Factorization
In this prime factorization worksheet, students solve 7 multiple choice problems. Students find the prime factorization of 91, 84, 78, 70, 67,63, and 36.
Curated OER
Prime Factorizations
In this prime numbers worksheet, students answer multiple choice questions about prime numbers and how they are read. Students answer 10 questions total.
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...
Curated OER
My Test Book: Factors and Prime Numbers
In this online interactive math skills instructional activity, students solve 10 multiple choice math problems regarding factors and prime numbers. Students may submit their answers to be scored.
Curated OER
More Factors and Multiples: Greatest Common Factor: Pre Test
In this greatest common factor instructional activity, students answer multiple choice questions about problem solving and rules of the greatest common factor in numbers. Students complete 10 questions total.
Curated OER
More Factors and Multiples: Greatest Common Factor
For this greatest common factor worksheet, students answer multiple choice questions about how to find the greatest common factor and actually finding it in problems. Students answer 10 questions total.
Curated OER
Greatest Common Factors
In this algebra worksheet, students solve problems using the GCF. They factor out the common variables and simplify the equations. There are 8 questions with an answer key.
Curated OER
My Test Book: Multiples and Factors
In this online interactive math skills activity, students solve 10 multiple choice math problems regarding multiples and factors. Students may view the correct answers.
Curated OER
More Factors and Multiples Pre-Test
In this factorization pre-test worksheet, students solve ten multiple choice questions by finding the least common multiple. This is an interactive worksheet.
Curated OER
The Cold War (1945–1963)
In this online interactive history worksheet, students respond to 8 short answer and essay questions about the Cold War. Students may check some of their answers on the interactive worksheet.
Curated OER
TAKS Math Quiz-Factorization
In this TAKS math quiz worksheet, students take an online quiz focused on the concept of factorization. Quiz can be graded online by clicking a link.
Curated OER
Least Common Multiple: Post Test
In 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
Simplifying Fractions
In this algebra worksheet, students simplify fractions using common denominators. They solve using addition and subtraction. There are 6 questions with an answer key.
Curated OER
Identify the Common Property in Twelve Octagons
In this Octagon Puzzle worksheet, students determine the common property for the given numbers in each of twelve octagon. The solutions are provided.
Mangahigh
Mangahigh: Number: Find Prime Factors
Test your knowledge of prime factors of two-digit numbers.
Calculator Soup
Calculator Soup: Prime Factorization Calculator
Use this prime numbers calculator to find all prime factors of a given integer number up to 1 trillion. This calculator presents prime factors of a number, prime decomposition in exponential form, CSV (comma separated values) list of...
ABCya
Ab Cya: Prime Numbers
Number Ninja: Prime Numbers is a fast-action way to practice factors. Act quickly and use your finger or mouse to slice numbers and reduce them to their prime factors. Do not slice a prime number!