## Prime Factorization, GCF & LCM

In this tutorial students learn how to find the Greatest Common Factor (GCF) and Least Common Multiple (LCM) using Prime Factorization. Students will also used the TI-84 to verify our results.

Sometime GFC is also referred to as GCD, Greatest Common Divisor.

## Virginia Standards of Learning(SOL)

**SOL 4.5**

The student will

a) determine common multiples and factors, including least common multiple and greatest common factor.

**SOL 5.3**

The student will

a) identify and describe the characteristics of prime and composite numbers; and

b) identify and describe the characteristics of even and odd numbers.

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