Finding the Greatest Common Factor - Interactive Math Lesson

Lesson: Finding the Greatest Common Factor
File: Interactive flash
Grades: 5-6
In this module pupils are expected to calculate for the GCF of sets of numbers.

The greatest common factor is the largest factor that two numbers share.
There are 2 methods in finding the GCF.
1. Listing Method
2. Factorization Method


Using Listing Method:
Make a list of factors for each number and identify their GCF.
Using Prime Factorization Method:
1. Find the prime factorization of each number.
I2. dentify the common factors and multiply them.

Watch the flash presentation to better understand the lesson. Answer the questions that follow.