(one of these days someone is going to pick something defined by a function at a certain value or a multiple of some awesome constant such as e or pi or i... when that day comes... ... ...we'll be guessing for a re-heally long time)
I think most people prefer short, easy rational numbers. For instance: I have trouble remembering past 3.14159265358979323, so I stick with integers.
I never know past 3.14.

91?
Range: 73 - 96
Guessed: 73, 75, 77, 78, 81, 87, 89, 91, 94, 96