Can you find a 76 digits multiple of 2^76, written exclusively with sixes and sevens (as asked in "Spirit of 76"), starting with the (given) value of 2^76, and doing nothing but a (relatively) few sums?

(To be more precise: you should be able to do this by hand, with just pencil and paper, in a reasonably short time -- minutes, not hours or days.)

(In reply to No Subject by Cory Taylor)

I'd say there *is* an answer, but as I posted the original problem, it doesn't seem fair for me to post it...

Posted by Federico Kereki on 2004-07-16 18:32:00