Also, don't miss the Erdős–Bacon number list. It sums one's Erdős number with the Keven Bacon number (shortest path to a movie with Keven Bacon). Some examples

Also, don't miss the Erdős–Bacon number list. It sums one's Erdős number with the Keven Bacon number (shortest path to a movie with Keven Bacon). Some examples (Erdos + Bacon): Mit Math Professor Daniel Kreitman (1 + 2) = 3 Richard Feynman (3 + 3) = 6 NCAA gymnastics champion Kiralee Hayashi (3 + 2) = 5 Natalie Portman (5 + 2) = 7 There's even a Erdos-Bacon-Sabbath number that also includes proximity to the band Black Sabbath.