## Teaching Identifying GCF Easily

- The Highest Common Factor of two different numbers ‘a’ and ‘b’ is the greatest natural number ‘x’. It is a factor of both ‘a’ and ‘b’.

- During the intersection of the sets of the common factors, it is the greatest value.

- It is expressed as: GCF (a,b ) = x. Where, a and b are two different natural numbers.

Let us look at the given example mentioned below to understand more about identifying GCF easily.

Example 1: Find the HCF of 18 and 27.

Step 1: Determine the factors.

Factors of 18 = 1, 2, 3 ,6 ,9 and 8.

Factors of 27 = 1, 3, 9, and 27.

Here, 9 is the greatest co...

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