List of people by Erdős number

Paul Erdős (1913–1996) was a Hungarian mathematician. He considered mathematics to be a social activity and often collaborated on his papers, having 511 joint authors, many of whom also have their own collaborators. The Erdős number measures the "collaborative distance" between an author and Erdős. Thus, his direct co-authors have Erdős number one, theirs have number two, and so forth. Erdős himself has Erdős number zero.

Erdős in 1992

There are more than 11,000 people with an Erdős number of two. This is a partial list of authors with an Erdős number of three or less, including only those who have existing Wikipedia articles. For more complete listings of Erdős numbers, see the databases maintained by the Erdős Number Project or the collaboration distance calculator maintained by the American Mathematical Society.