TRY THESE EXAMPLES FOR HCF

(a) Find the highest common factor of 20 and 30 by following the steps below:

What are the factors of 20? What are the factors of 30? What is the highest common factor of 20 and 30?

(b) Find the highest common factor of 14 and 12 by following the steps below:

What are the factors of 14? What are the factors of 12? What is the highest common factor of 14 and 12?

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