## Unit 01: Whole Numbers

## Unit 02: Number Theory

Divisibility tests for 2, 3, 4, 5, 6, 9, 10

The Why of the 3 Divisibility Rule

The Why of the 9 Divisibility Rule

Recognizing Prime and Composite Numbers

Least Common Multiple: Repeating Factors

Least Common Multiple of Three Numbers

Greatest Common Factor Examples

Greatest Common Factor Explained