What is the HCF of 32 and 98?

Answer 1

To work this out, you have to split the numbers into their prime factors:

32 = 2x2x2x2x2

98 = 2x7x7

The next step is to spot any common prime factors. In this case both numbers have a 2 as a prime factors. Thus the HCF of 32 and 98 is 2.