Things to Make and Do in the Fourth Dimension

by Matt Parker

The square of every prime number is one more than a multiple of 24.

An infinite number of mathematicians walk into a bar. The first one orders a pint of beer, the next a half-pint, the following a quarter of a pint, the next an eighth of a pint,

and so on. The annoyed bartender pours two pints, slams them on the bar and says, ‘You mathematicians need to know your limits!’