sonyguy
Sep 27 2005, 12:13 PM
Well, I couldn't find a topic I was really interested in, so I thought I would post on something comletely useless... The world's largest known prime number is actually 7,816,230 digits long, so I'm not going to type it all out, but the 'Mersenne number' is 225,964,951– 1. It was discovered by the Great Internet Mersenne Prime Search (GIMPS), a distributed network of volunteers using their spare computer power to find the largest Mersenne primes. This system actually discovered the eight largest prime numbers known. And, if you must, you can actually buy a poster of the number (but it's so small on the paper that you need something that magnifies it). Check it out here. PS. If you can find a prime number which has 10 million or more digits then you can have $100,000 from The Electronic Frontier Foundation. So if you'd like a good life, get a career in prime numbers 
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saga
Sep 27 2005, 01:28 PM
wow $100,000  but to find or to come up with 10 million or more digits of prime number you need to have a computing power that cost $1 million or more..
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shadowdemon
Sep 27 2005, 02:55 PM
wat about 1 with 10 million zeros
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simply-me
Sep 27 2005, 02:58 PM
QUOTE(sonyguy @ Sep 27 2005, 12:13 PM) Well, I couldn't find a topic I was really interested in, so I thought I would post on something comletely useless...
yh ur right but it is funny though..
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dogomchawi
Sep 27 2005, 04:34 PM
QUOTE(shadowdemon @ Sep 27 2005, 10:55 AM) wat about 1 with 10 million zeros Well that wouldn't be a prime number haha. but nice try A prime number has to be divisible only my 1 and itself I bet my Mac could come up with that number in no time flat muahhaah
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Amezis
Sep 27 2005, 06:59 PM
QUOTE(dogomchawi @ Sep 27 2005, 06:34 PM) I bet my Mac could come up with that number in no time flat muahhaah Yeah right... QUOTE(sonyguy @ Sep 27 2005, 02:13 PM) PS. If you can find a prime number which has 10 million or more digits then you can have $100,000 from The Electronic Frontier Foundation. So if you'd like a good life, get a career in prime numbers Well, $100,000 is alot for only one thing. However, I think it would cost you more to try to find out that number... And lots of time too, you could earn all that money normally instead of trying to find out a high number.
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Saint_Michael
Sep 28 2005, 06:03 AM
now thats a pay check i wouldn't mind getting every 2 weeks, but i would think the number will be larger if you just put a 1 as the last number no way you can divide it so thats the solution right their.
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sonyguy
Sep 28 2005, 07:46 AM
QUOTE now thats a pay check i wouldn't mind getting every 2 weeks More like EVERY week  QUOTE Well, $100,000 is alot for only one thing. However, I think it would cost you more to try to find out that number... And lots of time too, you could earn all that money normally instead of trying to find out a high number. That's probably true... unfortunately  Just too bad that my computer can't do it...
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bmxpunker2005
Sep 28 2005, 09:01 PM
ahahaha thats awsome. My elementary school teacher always said that prime numbers could'nt be that big. Only if I had her number right now. Man thats just crazy I dont know how people would even check that. What if the computer made a little tiny mistake. Would we have the brain power to ever really know? Anyways that was interesting, and its great to know my teacher was wrong on this. She always thought she was so smart. lol cheers
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Jesse
Sep 30 2005, 02:18 AM
you say its useless however its actually pretty neat i like the fact that technology has come so far as to know that. and no really if you put a 1 at the end it doesnt matter because 11 times 11 is 121 so therefore putting a 1 on the end doesnt really do too much. anywayz im in calc and thats something that i'd like to bring up to my teacher is just that fact that technology has come so far as to realize this...as for a computer making a mistake....for them to prove that something like that is true and to get the actual number they would have to have a really high powered computer and very advanced and im sure that it would have been tested many times over. so if someone has actually proved it and it was in an article...granted you cant trust everything now a days...but still if it was somwhere that u know is credible it was tested a lot of times to make sure that it is true. i still think that its really cool though thank you for the info!
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Tetraca
Oct 6 2007, 02:24 AM
QUOTE(g3place @ Oct 5 2007, 08:51 PM)  There is bound to be a bigger prime number, no matter what. Its just time that will find the number. Sigh, thats a ton of numbers. You seriously have to be dedicated or have no life to take a caereer in this. However that $100,000 sounds pretty nice. It will still take years actually programing a program that will find prime numbers, also you need to test it. I give up lol. There will always be a bigger number. It's just a matter of whether we've invented a term for it yet.
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g3place
Oct 5 2007, 08:51 PM
There is bound to be a bigger prime number, no matter what. Its just time that will find the number. Sigh, thats a ton of numbers. You seriously have to be dedicated or have no life to take a caereer in this. However that $100,000 sounds pretty nice. It will still take years actually programing a program that will find prime numbers, also you need to test it. I give up lol.
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csp4.0
Sep 28 2007, 08:22 AM
wow, they guys using the world's fastest supercomputer that went over 120 teraflops (forgot its name) might be able to squeeze some calculations into the computer's daily routine, or just wire up hundreds of C2Qs and send them to calculatown
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chaosdesign
Sep 28 2007, 03:44 AM
QUOTE(angad619 @ Sep 28 2007, 06:30 AM) No data structure in the world could contain such a big number. So how do you try to code it?
One more thing. If I give any damn number that is that long, how will they verify whether it is prime or not???
(as long as it is not divisible by the smaller nos) If they worked with raw numbers it would take all the super computers in the world to find the answer, they use exponents to calculate numbers, for example 2^345,869,567. and given a set range or say 500,000 number, an algorithm then processes all the number in that range, then submits it results back to a central server for double checking. If you go to this link, and actually read about it you would understand .
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hitmanblood
Sep 27 2007, 07:23 PM
QUOTE(angad619 @ Sep 27 2007, 08:30 PM) No data structure in the world could contain such a big number. So how do you try to code it?
One more thing. If I give any damn number that is that long, how will they verify whether it is prime or not???
(as long as it is not divisible by the smaller nos)
Why would a govt give away that much money?? Probably his country would feel proud that it's citizen has earned a name for his country. Then it should reward you for it.
Apart from the prize money, the fame that comes alongwith is worth the money you spend trying to get the no. But then, where do you start???? If this was reffering to me then I must say that there atre data structures that can hold numbers larger then long or double however there they are made like objects and because of that they in fact take more space then ordinary numbers. And I didn't said that government would finance that it would just use it to test new systems. However, if this was not for me then don't matter.
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