There aren't "thousands" of combinations. One of the 3 spots is an M, and the only numbers used in the other spots are 2,3,4,6,7,8 or 9.
Oh I didn't realize it was narrowed down that close. Well it's a good thing he narrowed it down that far lol, because from just the info in the first post, it would have been over a million different combinations. But you guys are correct, with the current info, it's just over a thousand different combos.