How to find the HCF?

Highest Common Factor :

The highest common factor (HCF) of two whole numbers is the largest whole number which is a factor of both.

Example: Find the HCF of 18 and 27

The factors of 18 are 1, 2, 3, 6, 9, 18.

The factors of 27 are 1, 3, 9, 27.

The common factors of 18 and 27 are 1, 3 and 9.

The greatest common factor of 18 and 27 is 9.

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Updated on: 10-Oct-2022

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