# Number Theory

Free

Intermediate

Video

Contest Math

6 Lessons

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This course will teach you about the basic concepts and strategies used to solve Number Theory problems in the AMC8 and AMC10 math competitions.

### Number Theory

#### Lesson 1 – The technique of Prime Factorization

Welcome to the 1st lesson of Flashmath AMC class series that focus on Number Theory.  In this lesson you will learn the basic technique of Prime Factorization.

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#### Lesson 2 – The concept of GCD / LCM

Welcome to the 2nd lesson of Flashmath AMC class series that focus on Number Theory.  In this lesson you will learn the concept of GCD / LCM, and how to properly use them.

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#### Lesson 3 – The introduction of Binomial Theorem

Welcome to the 3rd lesson of Flashmath AMC class series that focus on Number Theory.  In this lesson you will learn the key concept of Binomial Theorem, and how to effectively apply it.

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#### Lesson 4 – Solving advanced MODS problem

Welcome to the 4th lesson of Flashmath AMC class series that focus on Number Theory.  In this lesson you will learn how to handle the advanced MODS problem.

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#### Lesson 5- How to use Euler’s phi function

Welcome to the 5th lesson of Flashmath AMC class series that focus on Number Theory.  In this lesson you will learn how the effectively use Euler's phi function.

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#### Lesson 6 – Divisibility and Modular arithmetic theorems

Welcome to the 6th lesson of Flashmath AMC class series that focus on Number Theory.  In this lesson you will learn how to apply Divisibility and Modular arithmetic theorems.

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