Question

Let's try another set of numbers, say 12 and 24.

Here are the factors of both of them.



The common factors of 12 and 24 are 1, 2 , 3, 4, 6, and 12. The Highest Common Factor, or the HCF, therefore is
.

Answer 1

Answer:

Factors of 12 are 1, 2, 3, 4, 6 and 12 ...

... because 2 × 6 = 12, or 4 × 3 = 12, or 1 × 12 = 12.

Answer 2

Answer:

12 is 2*2*3

24 is 2*2*2*3

so hcf will be 2*2*3 that is 12