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45th Known Mersenne Prime Found?
An anonymous reader writes "The Great Internet Mersenne Prime Search (GIMPS) has apparently discovered a new world-record prime number. A GIMPS client computer reported the number on August 23rd, and verification is currently under way. The verification could take up to two weeks to complete. The last Mersenne prime discovered was over 9.8 million digits long, strongly suggesting that the new value may break the 10 million digit barrier — qualifying for the EFF's $100,000 prize!"
The beauty is that it doesn't HAVE to be useful.
You shouldn't think like that. Just think about your question, seriously. Whatever we do is pointless and useless and everything will be destroyed eventually through the heat death of the universe.
That being said, all that is important is that you have fun doing whatever you do. Believe it or not, some people really dig maths. Also, it's one more thing the species knows.
I guess some of us have different standards on beauty...
"Physics is like sex. Sure, it may give some practical results, but that's not why we do it." - Richard Feynman
I'm guessing it's the same logic at work here.
Because it's 2^n-1 it'd be 1111111....1111111 (the prime number is entirely made of 1s in base 2). So there's way less than 31MB of information in the number
// MD_Update(&m,buf,j);
That is kinda less interesting because it depends on the system used to represent the number (binary, decimal, etc.) rather than an intrinsic property of the number
doing it by hand would be like building the pyramids, by yourself.
it's not a weekend project, just writing down all the numbers from 1, to the number composed of at least 9 million but possibly ten or eleven million digits long... much less then dividing that number by every number from 1 to the number of the same length to make sure it is only evenly divisible by itself, and 1.
i repeat myself it's like trying to build they pyramids by yourself. or even better, trying to build a four lane highway by yourself. I remember hearing about a guy from Duluth Minnesota, who had been trying to build a highway the most direct route between Fargo, ND and Duluth, MN, and he actually started on the Duluth side, i know he didn't get far, but Duluth Minnesota is one of those 'rare' towns that was booming about 100 years ago, but then started shrinking (i forget when) and has never really completely recovered.
the guy started on his quest to get the highway built believing a direct route to Fargo would increase trade and tourism and what not (it would save on average an hours drive each way)
but i think he finally died, having completed somewhere between 12-40 miles of highway.
today's PCs are like having millions of number crunching slaves with never ending papyrus scrolls, there are things computers can do that a human being would never complete if they lived a million years. and even with those millions of number crunching slaves some things take a long time to compute.
the point being, the reason why people do these things with computers is because computers are the only thing that can do them, and to be the first to do something vastly unimaginable by normal standards. kinda like, 'why did we shoot a robot lander to mars?' instead of say, making beer free for everyone in the united states for a day.
https://www.gnu.org/philosophy/free-sw.html
You stopepd reading a comic because it made fun of you? I'd hate to live in that sad boring dreary life of yours, Monday, Wendsday and Friday that comic makes fun of me and I love it for it.
If you can't laugh at yourself then you have no right to laugh at anyone else.
I may agree with what you say, but I will defend to the death your right to face the consequences of saying it.
I didn't see your response, so I wrote my own instead of moderating yours like I should have. If anything, laughing at yourself should be easiest of all since you are more likely to get the joke given an intimate knowledge of its subject matter. =)
1^2-1 = 0, not one! Besides, 1 is not a prime number, by definition.
EagerEyes.org: Visualization and Visual Communication
Every prime number has a prime number of digits in some base.
Can you prove that?
Every prime, p, consists of p digits in unary.
"Little does he know, but there is no 'I' in 'Idiot'!"