Ch 26: Factoring & Divisibility Rules

About This Chapter

Bring to mind the rules for factoring and divisibility by looking at these lessons. Explore the step-by-step guides for dividing numbers, review the definitions of key terms, and answer quiz questions to see how well you understand this math topic.

Factoring & Divisibility Rules - Chapter Summary

It may have been a while since you initially learned the rules for factoring and dividing numbers, but this chapter will quickly refresh your memory. Each lesson helps you remember the rules from start to finish, including a thorough explanation of prime numbers, common multiples, common factors, and more. Upon the completion of this chapter, you should be able to remember how to do the following:

  • Describe how to identify composite and prime numbers
  • Determine a definition for prime factorization
  • Establish divisibility by 2-10
  • Identify how to determine the least common multiple
  • Check out ways to find the greatest common factor
  • Compare different types of numbers in word problems

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8 Lessons in Chapter 26: Factoring & Divisibility Rules
Test your knowledge with a 30-question chapter practice test
Identifying Prime & Composite Numbers

1. Identifying Prime & Composite Numbers

In this video lesson, you will learn how to identify both prime and composite numbers. You will also learn what makes the numbers unique, as well as the characteristics of both these types of numbers.

What is Prime Factorization? - Definition & Examples

2. What is Prime Factorization? - Definition & Examples

In this lesson, you will learn about prime numbers and how to find the prime factorization of a number. By the time we're done, you should be skilled at breaking down numbers into their smallest parts!

Divisibility by 2, 3, and 4

3. Divisibility by 2, 3, and 4

In this video lesson, you will learn what it means to be divisible. Also, you'll see what numbers are divisible by 2, 3, and 4. You will also learn how you can check if something is divisible by these numbers.

Divisibility by 5, 6, and 7

4. Divisibility by 5, 6, and 7

In this video lesson, we will see what numbers can be divided equally by 5, 6, and 7. Learn the pattern that you can use to find other numbers divisible by 5, 6 and 7. Learn how you can visualize divisibility.

Divisibility by 8, 9, and 10

5. Divisibility by 8, 9, and 10

In this video lesson, we will see what numbers are divisible by 8, 9, and 10. You will learn how you can figure out these numbers yourself. Learn what it means to be divisible.

How to Find the Least Common Multiple

6. How to Find the Least Common Multiple

The least common multiple of two numbers is the smallest number that can be divided evenly by your two original numbers. See some examples of what I'm talking about here!

How to Find the Greatest Common Factor

7. How to Find the Greatest Common Factor

If the factors of a number are the different numbers that you can multiply together to get that original number, then the greatest common factor of two numbers is just the biggest one that both have in common. See some examples of what I'm talking about here!

Word Problems: Greatest Common Factor & Least Common Multiple

8. Word Problems: Greatest Common Factor & Least Common Multiple

In this video lesson, you will learn what kinds of word problems you can expect to see that involve the greatest common factor or the least common multiple. Learn what you need to do to understand these problems and then to solve them.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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