Arran has said he would like to solve the Riemann hypothesis - a theory about the patterns of prime numbers which has baffled the greatest mathematicians for 150 years.

BBC: Arran Fernandez

He once relayed a story about how he set up an encryption puzzle based on the manipulation of prime numbers.

CNN: The secret life of Julian Assange

The real significance of the hypothesis lies in its consequences, and particularly in what it says about prime numbers.

ECONOMIST: Mathematics