The first number can be in one of four slots, the second in one of three, then two, then one. That's why you're dividing by 4 factorial. But anyway, let's just evaluate this. This will tell us how many possible outcomes are there for the lottery game. So this is equal to, we already said the blue part is equivalent to 60 times 59 times 58 times 57. So that's literally 60 factorial divided by essentially 56 factorial. And then you have your 4 factorial over here, which is 4 times 3 times 2 times 1.