Well, natural log of a might not immediately jump out to you but that's just going to be a number. So that's just going to be, so times, if it was the derivative of three x, it would just be three. If it's the derivative of natural log of a times x, it's just going to be natural log, natural log of a. And so this is going to give us the natural log of a times e to the natural log of a, and I'm going to write it like this, natural log of a to the x power. Well, we've already seen this, let me, this right over here is just a. So it all simplifies, it all simplifies to the natural log of a times, times a to the x, which is a pretty neat result. So if you're taking the derivative of e to the x, it's just going to be e to the x.