Q. Paul Erdős was famous for __?
Answer: As a Hungarian mathematician
Notes: Paul Erdos was a renowned Hungarian mathematician. He was one of the most prolific mathematicians and producers of mathematical conjectures of the 20th century. He was known both for his social practice of mathematics and for his eccentric lifestyle. Erdos pursued and proposed problems in discrete mathematics, graph theory, number theory, mathematical analysis, approximation theory, set theory, and probability theory. Much of his work centred around discrete mathematics, cracking many previously unsolved problems in the field.