And I encourage you to pause the video and try to think of what that number would actually be. Well, a big clue was, when we essentially wrote all of the permutations where we've picked a group of three people, we see that there's six ways of arranging the three people. And you pick a certain group of three people that turned into six permutations. And so if all you want to do is care about, well, how many different ways are there to choose three from the six, you would take your whole permutations, you would take your number of permutations, and then you would divide it by the number of ways to arrange three people. Number of ways to arrange three people. And we see that you can arrange three people, or even three letters, you can arrange it in six different ways. So this would be equal to 120 divided by six, or this would be equal to 20.