Which is equal to, so if I want to subtract that from 1, 1 minus, that just means the answer, that means 1 minus 0.29. You get 0.7063. So the probability that someone shares a birthday with someone else is 0.7063, it keeps going, which is approximately equal to 70.6%. Which is kind of a neat result. Because if you have 30 people in a room, you might say, oh wow, what are the odds that someone has the same birthday as someone else? It's actually pretty high. Most, 70% of the time, if you have a group of 30 people, at least one person shares a birthday with at least one other person in the room.