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Spirit of 76 with no products (Posted on 2004-07-13) Difficulty: 3 of 5
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.)

See The Solution Submitted by e.g.    
Rating: 3.3333 (3 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Some Thoughts re: No Subject | Comment 2 of 3 |
(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

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