My Erdos number is 2. Those who have coauthored a paper with Paul Erdos have Erdos number 1. Those who have coauthored a paper with someone who has Erdos number 1 have Erdos number 2. And so on. Click here to find out more about Paul Erdos and for names of individuals with Erdos numbers 1 and 2. There are currently 507 individuals with Erdos number 1 and 6419 individuals with Erdos number 2.