What is the HCF of 40 and 48?

Answer 1

TO work out the HCF you need to split the numbers into their prime factors. In this case you have:

40 = 2x2x2x5

48 = 2x2x2x2x3

The next step is to identify any common prime factors. Both numbers have three 2s as prime factors. Multiply these together and you get:

2x2x2 = 8

Thus the HCF of 40 and 48 is 8.