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...