illegal number

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illegal number ‎(plural illegal numbers)

  1. (law) a number that represents information which is illegal to possess, utter or propagate. Any information that can be represented in binary format is, ipso facto, representable as a number, and therefore if the information itself is illegal in some way, the pure number itself may be called illegal.[1][2][3]

See also[edit]


  1. ^ Phil Carmody, "An Executable Prime Number?", URL accessed on 2007-05-08.
  2. ^ Thomas C Greene. "DVD descrambler encoded in ‘illegal’ prime number", The Register, 2001-03-19. Retrieved on 2007-05-08.
  3. ^ "The Prime Glossary: illegal prime", URL accessed on 2007-05-09.