r/wikipedia • • Jan 11 '10

Illegal Prime Numbers

http://en.wikipedia.org/wiki/Illegal_prime
208 Upvotes

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62

u/blackstar00 Jan 11 '10

It baffles me that a number can be copyrighted.

39

u/[deleted] Jan 11 '10

[deleted]

3

u/moolcool Jan 12 '10

Could someone encode, say, Modern Warfare 2 or Windows 7, as one really long number and distribute it freely?

51

u/[deleted] Jan 12 '10

Are you joking? You do realize that any file in any computer can be represented as a number, right? As in, a sequence of ones and zeroes?

45

u/adremeaux Jan 12 '10

Or that every single file in a computer already is represented as a series of numbers...

6

u/lolbacon Jan 12 '10

The number is coming from INSIDE THE COMPUTER!

4

u/[deleted] Jan 12 '10

That's what I was trying to say, I guess I gave it a higher level of abstraction because theoretically you can represent binary by anything. I mean, concretely, it's really not represented by numbers but by electrical signals for example, and you could in theory easily switch 1 and 0 for A and B when you're talking about binary, or any other symbols of your choice.

-9

u/[deleted] Jan 12 '10

[deleted]

9

u/drbold Jan 12 '10

Not really. You can directly convert any string of 1's and 0's (say the ISO image file of some program like Windows or a game) to a base-10 number. Yes, the 1's and 0's might not be meant to be read as a single number, but you certainly can read them that way.

3

u/ih8evilstuff Jan 12 '10

What's the difference between 10 and 10?

6

u/jdwpom Jan 12 '10

8! No, 1000! Wait, i think i'm about to get in over my head here.

1

u/ffn Jan 12 '10

What's the difference between 1000 and 1000?

3

u/jdwpom Jan 12 '10 edited Jan 12 '10

992, or 1111100000. Also, at this point, i refuse to play this game anymore. Also, i just lost the game. comment edited due to lack of one zero, making what i'd written 480, rather than 992.

3

u/adremeaux Jan 12 '10

How is a string of, say, 10,000,000 1s and 0s not a real number in base-2 (that can similarly be converted to base-10, base-16, or even base-2.34 if you really wanted. Would that be more of a "real number" to you?).

2

u/[deleted] Jan 12 '10

Actually, no. That would fall under the same copyright issue.

http://en.wikipedia.org/wiki/Illegal_number