This is random enough, but I actually have a fairly low Erdõs number.
My number is three, here's the route:
from J.Feigenbaum, E.Hargittai, J.O'Rourke. Expanding the Pipeline, CRAW Database Aids Academic Recruiters 1994. Computing Research News. September
from P. Agarwal, B. Aronov, J. O'Rourke, C. Schevon, "Star unfolding of a polytope with applications," SIAM. J. on Computing, 26(6) 1689-1713, December 1997.
see info on Aronov's link here
For more information on what all this is about, see the Paul