Perhaps due to the frequency it is used as a plot device, people overestimate their chance of winning the lotto. This page will let you know just how bad your odds are in your state, using the standard "n choose k" formula. One interesting thing you can do is to try increasing the number you can choose from by 1 and see how fast the odds increase. Just in case you want to ignore my advice and play the lotto, you also will get a set of "lucky" numbers generated. If you play them and win, you don't even have to give me any of it. :)