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Highest Common Factor




Highest common factor(HCF) of two or more number is the greatest number which divides each of them exactly.

Example:

H.C.F of 18,24 and 36 is as 6 is the greatest number which divides each of 18,24 and 36 exactly.

Methods of finding H.C.F


To find the H.C.F of four number by division method

1. Find the H.C.F of any three given numbers by the previous method.

2. Then find the H.C.F of the fourth given number and the H.C.F obtained in step1. In the same way,The H.C.F for the five or more than five given numbers can be obtained.