There are24 counters

How many counter can you make and why

2 answers

Please explain. Do you need to divide the 24 counters into even groups?
There are 2^24 subsets here.
That would include all your choices of 1 at a time, 2 at a time, 3 at a time, etc

It also includes not taking any, which we probably want to exclude.
so 2^24 - 1 = 16777215