This is as far as we will go. Three trillion tons of pennies is quite enough. To imagine

larger cubes, (stepping by factors of 1,000), just imagine cubes roughly ten times larger than

the last one. For instance, one quintillion pennies makes the cube above - about 5 miles on

each side. If you step up to one sextillion, imagine a cube about 50 miles wide tall and thick.

Thanks for visiting the MegaPenny Project. You can find further related links and a table of

named "very big numbers" on our index page .