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Ch 14: CEOE Advanced Math: Number Theory

About This Chapter

Learn about number theory in this chapter of the CEOE Advanced Mathematics exam study guide. Video lesson and self-assessment quizzes review topics you should understand about number theory for teacher licensure in Oklahoma.

CEOE Advanced Math: Number Theory - Chapter Summary

Lessons in this chapter explore number theory, including prime numbers, composite numbers, and odd and even numbers. Also covered are how to find the prime factorization of a number, finding the prime factorization with exponents, and how to find the greatest common factor. By the end of this chapter, you should be familiar with:

  • Prime, composite, and odd and even numbers
  • How to find the prime factorization of a number
  • Finding the prime factorization with exponents
  • How to find the greatest common factor
  • How to find the least common multiple
  • Using prime factorizations to find the least common multiples

Short, engaging video lessons make the material fun and interesting. Self-assessment quizzes can be used to test your knowledge, or print them as worksheets to help you study. The jump feature under the Timeline tab allows you to skip directly to main subjects in each video.

Number Theory - Chapter Objectives

Oklahoma uses the CEOE Advanced Mathematics exam as a requirement for teacher certification. The questions in this chapter are in the exam's section on mathematical processes and number sense, which accounts for about 18% of the test. The exam consists of 80 multiple-choice questions and one open-response question. Our lessons quizzes and chapter exam offer good practice in answering these types of questions.

9 Lessons in Chapter 14: CEOE Advanced Math: Number Theory
Test your knowledge with a 30-question chapter practice test
What Are Prime Numbers? - Definition & Examples

1. What Are Prime Numbers? - Definition & Examples

In this lesson, we'll do a brief review of factors, and then learn how factors make prime numbers unique. You can also test your knowledge with a brief quiz.

What Are Composite Numbers? - Definition & Examples

2. What Are Composite Numbers? - Definition & Examples

In this lesson, you'll learn what composite numbers are and briefly touch on prime numbers. You'll also learn a couple of rules about composite numbers. Then, you can test your new knowledge with a brief quiz.

What Are Odd & Even Numbers? - Definition & Examples

3. What Are Odd & Even Numbers? - Definition & Examples

In this lesson, you'll learn what odd and even numbers are with the help of some visual aids. You'll also learn some interesting properties of odd and even numbers. Then, you can test your new knowledge with a brief quiz.

How to Find the Prime Factorization of a Number

4. How to Find the Prime Factorization of a Number

The prime factorization of a number involves breaking that number down to its smallest parts. This lesson will show you two different ways to discover the prime factorization of any number.

Finding the Prime Factorization with Exponents

5. Finding the Prime Factorization with Exponents

After watching this video lesson, you will be able to factor any number using just prime numbers and exponents. Learn how to break apart any number you are given. Then, test your new knowledge with some examples.

How to Find the Greatest Common Factor

6. 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!

How to Find the Least Common Multiple

7. 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!

Using Prime Factorizations to Find the Least Common Multiples

8. Using Prime Factorizations to Find the Least Common Multiples

Finding the least common multiple can seem like a lot of work. But we can use prime factorization as a shortcut. Find out how and practice finding least common multiples in this lesson.

Word Problems: Greatest Common Factor & Least Common Multiple

9. 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.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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Other Chapters

Other chapters within the OSAT Advanced Mathematics (CEOE) (111): Practice & Study Guide course

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