What is hcf
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Payal Singh 8 years, 4 months ago
The largest common factor of two or more numbers is called the highest common factor (HCF).
For example: We have already seen that the factors of 24 are 1, 2, 3, 4, 6, 8, 12 and 24 and that the factors of 40 are 1, 2, 4, 5, 8, 10, 20 and 40.
The numbers 1, 2, 4 and 8 appear in both lists, so they are known as the common factors of 24 and 40.
The number 8 is the highest of them, and it is called the highest common factor (HCF).
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