My Erdős number is 2 (which is, of course, the lowest it will ever be).

Three of my co-authors have Erdős numbers of 1. Listed in the order in which they became my co-authors:

  • Gérald Tenenbaum, seven joint papers with Erdős
  • Carl Pomerance, over twenty joint papers with Erdős
  • Andrew Granville, two joint papers with Erdős

My first collaboration was with Andrey Feuerverger, which gave me my first finite Erdős number of 4.

Many thanks to Jerry Grossman et al. for maintaining the Erdős Number Project home page.