Page 10 - MATH KELAS 7 - HCF and LCM

How to find HCF?

There are many ways to find the highest common

factor of the given numbers. Irrespective of the

method the answer to the HCF of the numbers

would always be the same.

There are 3 methods to calculate the HCF of two

numbers:

1. HCF by listing out the common factors

2. HCF by prime factorization

3. HCF by division method

Let us discuss each method in detail by

understanding the examples.

1. HCF by Listing out the Common Factors

In this method, we list out the factors of each
number and determine the common factors of

those numbers. Then, among the common factors,
we determine the highest common factor. Let's

understand this method using an example.

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