Duplicate of other simple kata's that require us to probe for factors of numbers.

Sample tests are wrong:

test.expect(factor_finder(0, 10, 3) == [4, 9], "factor_finder(0, 10, 3) should be [4, 9]")
test.expect(factor_finder(0, 10, 3) == [2, 3, 5, 7, 9], "factor_finder(0, 10, 2) should be [2, 3, 5, 7, 9]")

Different expected values with the same input.