## Teaching Identifying GCF Easily

- Firstly, express or represent the numbers in the prime factored form or way.
- Secondly, identify the GCF.
- The highest common factor between the numbers is the GCF of the two or more than two numbers.

Let us take an example mentioned below to understand more about identifying GCF.

Example 1: What is the GCF of 60 and 90.

Step 1: Find the factors of 60 and 90.

60 = 2, 3, 5 and 2.

90 = 2, 3, 5 and 3.

Here, the GCF is 30 ( 2 * 3 * 5).

## Why Should You Use a Identify GCF (ladder method) Worksheet for your Students?

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