Home » The Formulas
Since there are 220 possible outcomes, one may be tempted to conclude that the chance winning in a box is 1 in 220. This is not exactly true since not all boxes have equal chances of winning; numbers with non-repeating digits have a better chance of winning than numbers with one digit repeated.
For example, the number 123 has a better chance of winning than the number 122, since 123 covers six possible permutations shown above, while 122 covers only three (122, 212, 221).