That is correct. As I was thinking of the question as I was driving along the freeway today, I thought about how there are many different molecules floating around in beer (I’ll go ahead and choose Guinness in this case). The smallest unit of Guinness will contain specific amounts of each constituent molecule. Remove one of those molecules (say, you need 100 molecules of X, and you only have 99), and you no longer have Guinness. For simplicity, let’s call all of the necessary molecules to create one unit of Guinness a ‘beer molecule’.
If you’re a super-braniac, it would be nice to know how many ‘beer molecules’ there are in a pint. From there, a regular ol’ braniac could figure out the maximum number of mathematicians. (Hey, would this be a good PhD thesis? The research might be fun.)