How can you use HCF in your daily life?

Answer 1

HCF can be used in a number of ways, particularly for organisational purposes.

For example, if you're a teacher who works with a class with 27 pupils and a class with 18 pupils, and you want each class to have a sports tournament with the winning team from each class playing each other, you would want to know the largest possible team number that you could break both classes into. In this case, both classes can be split into teams with 9 players, as that's the HCF.