Listing the factors of a number

[ichabod801]

You only need to check up to the square root of the number. But to do that, you need to append the factor you found (i (which is a bad variable name, use more descriptive names like 'factor' or 'possible')), and the number divided by the factor.

For example, checking factors of 16, you get 2 as a factor. You add that to the factors list, as well as 16 / 2 = 8.