“Multi-dimmensional: A 2D drawing of an 8D object that stands as a root of the 57D object called E8, and its 248D symmetries.
American Institute of Mathematics/Peter McMullen.

The creation of this map, which took 77 hours on a supercomputer, resulted in a matrix of 453,060 x 453,060 cells.”

News at Nature. “Journey to the 248th dimension”.
Published online: 19 March 2007; | doi:10.1038/news070319-4