Oskar Perron
died 42 years ago
22nd February 1975

Oskar Perron was a German mathematician best known for the Perron paradox:
Suppose the largest natural number is N. Then if N > 1 we have N2 > N contradicting the definition. Hence (!) N = 1.

Find out more at:
http://www-history.mcs.st-andrews.ac.uk/Mathematicians/Perron.html