3 ms·

See the discussion above. :) Prime number sequences are unlikely to be "useful" in the same sense as protein folding.

• gnaritas 13y ago
  Another possibility.
  • lukifer 13y ago
    Protein folding unfortunately isn't a good candidate, because verifying the work takes exactly as much effort as doing the work. http://en.wikipedia.org/wiki/Proof-of-work_system http://en.wikipedia.org/wiki/Proof-of-work_system