The smallest of three consecutive prime numbers that are
also consecutive lucky numbers. [Harvey]
Cicada 3301 is a name given to an enigmatic organization that has posted a set of complex puzzles and alternate
reality games on the internet to recruit codebreakers from the public.
The sum of the first 3301 positive repunits (i.e., 1+11+111+1111+...) is a 3301-digit prime number. Note
that 3301 is the first prime of which this happens. [Antonious]
(There is one curio for this number that has not yet been approved by an editor.)