Find the highest common factor (HCF) of 42, 56, and 98.
Note
The common prime factors are 2 and 7; taking the minimum powers gives HCF = 2·7 = 14.
Find the highest common factor (HCF) of 42, 56, and 98.
The common prime factors are 2 and 7; taking the minimum powers gives HCF = 2·7 = 14.