5 ms·

There already are some illegal transcendental numbers. For example, you can't publish the transcendental number which is the circumference of a circle whose dia

There already are some illegal transcendental numbers. For example, you can't publish the transcendental number which is the circumference of a circle whose diameter in metres is 485650789657397829309841894694286137707442087351357924019652073668698513401047237446968797439926117510973777701027447528049058831384037549709987909653955227011712157025974666993240226834596619606034851742497735846851885567457025712547499964821941846557100841190862597169479707991520048667099759235960613207259737979936188606316914473588300245336972781813914797955513399949394882899846917836100182597890103160196183503434489568705384520853804584241565482488933380474758711283395989685223254460840897111977127694120795862440547161321005006459820176961771809478113622002723448272249323259547234688002927776497906148129840428345720146348968547169082354737835661972186224969431622716663939055430241564732924855248991225739466548627140482117138124388217717602984125524464744505583462814488335631902725319590439283873764073916891257924055015620889787163375999107887084908159097548019285768451988596305323823490558092032999603234471140776019847163531161713078576084862236370283570104961259568184678596533310077017991614674472549272833486916000647585917462781212690073518309241530106302893295665843662000800476778967984382090797619859493646309380586336721469695975027968771205724996666980561453382074120315933770309949152746918356593762102220068126798273445760938020304479122774980917955938387121000588766689258448700470772552497060444652127130404321182610103591186476662963858495087448497373476861420880529443

jtbayly 6y ago
??
- tick_tock_tick 6y ago
  It's the DVD decryption key one of the first "illegal prime" https://en.wikipedia.org/wiki/Illegal_prime https://en.wikipedia.org/wiki/Illegal_prime
  - TwistedWave 6y ago
    It's not just the decryption key. It is a gzip file containing the full source code of the decoder!
  - GoblinSlayer 6y ago
    Is illegal prime multiplied by 2 illegal too?
    - gspr 6y ago
      I don't know! Maybe the MPAA's lawyers can't invert that obfuscation function :-)
    - droffel 6y ago
      Law operates under the assumption that an idea called color exists. Computer scientists, for their job, generally must assume it does not. Color is a sort of Metadata property of something (an object, data), and in this case, the color of the illegal number pertains to how it was derived (where it came from). If the number is 'tainted' in its origin by having been influenced somewhere in its past by the offending illegal number, then it too can be illegal. A good explanation for this is below: https://ansuz.sooke.bc.ca/entry/23 https://ansuz.sooke.bc.ca/entry/23 tl;dr yes. An illegal number multiplied by two is illegal. Randomly generating that number is not. The illegality is not strictly a property of the number itself, but it's color.
      - scoot_718 6y ago
        So too for addition then. An illegal number + 1 is illegal. An illegal number - 1 is illegal. Therefore all numbers are illegal.
        droffel 6y ago
        I believe you misunderstood my comment. Numbers who's origins are tainted by an illegal number can be illegal. Numbers who's origins do not have taint from an illegal number are not. It is not the number that is illegal, it is it's color. How it came into being, it's history, a permanent invisible mark that it carries with it, and transfers to whatever it touches. You can't just dodge color by mutating the number via mathematical operations, color doesn't work like that. You can only get rid of the taint by using a fresh number without taint.
chrisweekly 6y ago
please explain; thanks in advance
- deleted 6y ago
  [deleted]
- Iwan-Zotow 6y ago
  this is one of the leaked DVD encryption keys (expressed, of course, in very funny way), which is used since eternity by pirats for DVD decryption. Used to be illegal to have it in US and other countries, don't know status now
  - avhception 6y ago
    Not only by pirates. As a Linux user, I need it to watch my legally bought DVDs since there is no viable other way.
  - gspr 6y ago
    > this is one of the leaked DVD encryption keys (expressed, of course, in very funny way) It's actually even cooler: store this prime in base-2 and interpret it as a gzip file, and it'll gunzip to a full working DeCSS (DVD decrypter) source code in C :-)
falcor84 6y ago
Excellent. Can we now please also have an illegal (proper) surreal number? ;)
- octoberfranklin 6y ago
  No; by law there must be a set of illegal numbers. As a proper class the surreals are simply too vast to be outlawed.
nvader 6y ago
I appreciate that it's in metres. Does it need to be?
- luma 6y ago
  Nope, pi has no units.
  - ninju 6y ago
    But circumferences and diameters have units (of distance)
jdndbfbf 6y ago
https://primes.utm.edu/curios/page.php?number_id=953 https://primes.utm.edu/curios/page.php?number_id=953
Thorentis 6y ago
This is a bit ridiculous. Every movie file or image file is technically just one long number. Or if you take a book and convert each character to Ascii and make that into one long number. It's all about how you interpret the number. While the fact that the DVD decryption program when arranged as a number happens to be prime is cool, the fact it is "illegal" is a dubious claim at best.

jtbayly 6y ago

tick_tock_tick 6y ago
It's the DVD decryption key one of the first "illegal prime" https://en.wikipedia.org/wiki/Illegal_prime https://en.wikipedia.org/wiki/Illegal_prime
- TwistedWave 6y ago
  It's not just the decryption key. It is a gzip file containing the full source code of the decoder!
- GoblinSlayer 6y ago
  Is illegal prime multiplied by 2 illegal too?
  - gspr 6y ago
    I don't know! Maybe the MPAA's lawyers can't invert that obfuscation function :-)
  - droffel 6y ago
    Law operates under the assumption that an idea called color exists. Computer scientists, for their job, generally must assume it does not. Color is a sort of Metadata property of something (an object, data), and in this case, the color of the illegal number pertains to how it was derived (where it came from). If the number is 'tainted' in its origin by having been influenced somewhere in its past by the offending illegal number, then it too can be illegal. A good explanation for this is below: https://ansuz.sooke.bc.ca/entry/23 https://ansuz.sooke.bc.ca/entry/23 tl;dr yes. An illegal number multiplied by two is illegal. Randomly generating that number is not. The illegality is not strictly a property of the number itself, but it's color.
    - scoot_718 6y ago
      So too for addition then. An illegal number + 1 is illegal. An illegal number - 1 is illegal. Therefore all numbers are illegal.
      - droffel 6y ago
        I believe you misunderstood my comment. Numbers who's origins are tainted by an illegal number can be illegal. Numbers who's origins do not have taint from an illegal number are not. It is not the number that is illegal, it is it's color. How it came into being, it's history, a permanent invisible mark that it carries with it, and transfers to whatever it touches. You can't just dodge color by mutating the number via mathematical operations, color doesn't work like that. You can only get rid of the taint by using a fresh number without taint.

chrisweekly 6y ago

please explain; thanks in advance

deleted 6y ago
[deleted]
Iwan-Zotow 6y ago
this is one of the leaked DVD encryption keys (expressed, of course, in very funny way), which is used since eternity by pirats for DVD decryption. Used to be illegal to have it in US and other countries, don't know status now
- avhception 6y ago
  Not only by pirates. As a Linux user, I need it to watch my legally bought DVDs since there is no viable other way.
- gspr 6y ago
  > this is one of the leaked DVD encryption keys (expressed, of course, in very funny way) It's actually even cooler: store this prime in base-2 and interpret it as a gzip file, and it'll gunzip to a full working DeCSS (DVD decrypter) source code in C :-)

falcor84 6y ago

Excellent. Can we now please also have an illegal (proper) surreal number? ;)

octoberfranklin 6y ago
No; by law there must be a set of illegal numbers. As a proper class the surreals are simply too vast to be outlawed.

nvader 6y ago

I appreciate that it's in metres. Does it need to be?

luma 6y ago
Nope, pi has no units.
- ninju 6y ago
  But circumferences and diameters have units (of distance)

jdndbfbf 6y ago

https://primes.utm.edu/curios/page.php?number_id=953 https://primes.utm.edu/curios/page.php?number_id=953

Thorentis 6y ago

This is a bit ridiculous. Every movie file or image file is technically just one long number. Or if you take a book and convert each character to Ascii and make that into one long number. It's all about how you interpret the number. While the fact that the DVD decryption program when arranged as a number happens to be prime is cool, the fact it is "illegal" is a dubious claim at best.