# Illegal numbers. **URL:** \ **Category:** About This Message Board\ **Created:** [October 12, 2010, 4:25am UTC](https://boards.straightdope.com/t/illegal-numbers/556862 "2010-10-12T04:25:34Z")\ **Posts on this page:** 1\ **Showing post:** 4
**Author:** ![Marley23](https://avatars.discourse-cdn.com/v4/letter/m/45deac/32.png) [@Marley23](https://boards.straightdope.com/u/Marley23)\ **Post date:** [October 12, 2010, 4:30am UTC](https://boards.straightdope.com/t/illegal-numbers/556862/4 "2010-10-12T04:30:40Z")
[For those not familiar with the idea (like me):](http://en.wikipedia.org/wiki/Illegal_number) > [@](#): > > An illegal number is 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 illegal. It sounds pretty clear that this would violate the rules. You’re not allowed to use the board to break the law or encourage people to break the law. > [@SDMB registration agreement as of 12/29/2008](https://boards.straightdope.com/t/sdmb-registration-agreement-as-of-12-29-2008/406370/1): > > You agree, through your use of this service, that you will not use the SDMB to post any material that you know or should know is false and/or defamatory, inaccurate, abusive, vulgar, hateful, harassing, obscene, profane, threatening, invasive of a person’s privacy, or **in** violati **on** of U.S. law. You agree not to post material that in our opinion **encourages** activity that is illegal in the U.S. --- _[View the full topic](https://boards.straightdope.com/t/illegal-numbers/556862)._