You should also check out the FAQs in the various Access forums for more explicit techniques.
However, I always discourage people from trying to make Autonumbers have more meaning than just an arbitrary identifier. They weren't designed for that, and there are problems. For example, if you start to create record 116 and then cancel before you've added it, the next record will be 117, and 116 will be skipped. For another example, if your last record was 223 and you delete it, then compact, the next record will be 223 (or lower) again.
In short, there's no guarantee that you'll get consecutive numbers from an Autonumber. They're only mostly consecutive.
Rick Sprague
Want the best answers? See faq181-2886
To write a program from scratch, first create the universe. - Paraphrased from Albert Einstein