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#1 2006-01-06 17:40:44

mikau
Member
Registered: 2005-08-22
Posts: 1,504

So did you hear they found a new prime number?

KANSAS CITY, Missouri (AP) -- Researchers at a Missouri university have identified the largest known prime number, officials said Tuesday.

The team at Central Missouri State University, led by associate dean Steven Boone and mathematics professor Curtis Cooper, found it in mid-December after programming 700 computers years ago.

A prime number is a positive number divisible by only itself and 1 -- 2, 3, 5, 7 and so on.

The number that the team found is 9.1 million digits long. It is a Mersenne prime known as M30402457 -- that's 2 to the 30,402,457th power minus 1.

Mersenne primes are a special category expressed as 2 to the "p" power minus 1, in which "p" also is a prime number.

"We're super excited," said Boone, a chemistry professor. "We've been looking for such a number for a long time."

The discovery is affiliated with the Great Internet Mersenne Prime Search, a global contest using volunteers who run software that searches for the largest Mersenne prime.

Horray! We've got a new prime number!

...

so now what do we do with it?

Last edited by mikau (2006-01-06 17:42:23)


A logarithm is just a misspelled algorithm.

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#2 2006-01-06 22:47:55

krassi_holmz
Real Member
Registered: 2005-12-02
Posts: 1,908

Re: So did you hear they found a new prime number?

I know this long ago.


IPBLE:  Increasing Performance By Lowering Expectations.

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#3 2006-01-06 23:38:09

MathsIsFun
Administrator
Registered: 2005-01-21
Posts: 7,529

Re: So did you hear they found a new prime number?

mikau wrote:

so now what do we do with it?

Smile and laugh at it, then go find another ... of course!


"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

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#4 2006-01-07 01:38:18

mathsyperson
Moderator
Registered: 2005-06-22
Posts: 4,900

Re: So did you hear they found a new prime number?

I read about it a few days ago. The only use for it that I can think of would be to use it to calculate a new perfect number. And that's not very useful either.


Why did the vector cross the road?
It wanted to be normal.

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#5 2006-01-07 02:57:21

VR Hawks
Member
Registered: 2005-11-26
Posts: 401

Re: So did you hear they found a new prime number?

It's not that interesting enough. What we can do is, like what MathIsFun said, find a new one!


Name :: Vincent Raider Hawks
Gender :: Male
Birth Date :: July 4 , 1970

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#6 2006-01-07 06:11:36

krassi_holmz
Real Member
Registered: 2005-12-02
Posts: 1,908

Re: So did you hear they found a new prime number?

No, you can't.


IPBLE:  Increasing Performance By Lowering Expectations.

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#7 2006-01-07 06:13:16

krassi_holmz
Real Member
Registered: 2005-12-02
Posts: 1,908

Re: So did you hear they found a new prime number?

Unless you have superfast supecomputer for factorosing VERY VERY large numbers.
9.1 millions digits~8MB (I think)


IPBLE:  Increasing Performance By Lowering Expectations.

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#8 2006-01-07 07:37:36

mikau
Member
Registered: 2005-08-22
Posts: 1,504

Re: So did you hear they found a new prime number?

"We're super excited," said Boone, a chemistry professor. "We've been looking for such a number for a long time."

Whats he excited about? lol. Chemists...


A logarithm is just a misspelled algorithm.

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#9 2006-01-07 07:40:32

Crissi_the_vet
Member
Registered: 2006-01-07
Posts: 2

Re: So did you hear they found a new prime number?

o_o

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#10 2006-01-07 07:47:52

Ricky
Moderator
Registered: 2005-12-04
Posts: 3,791

Re: So did you hear they found a new prime number?

Well since we know there are an infinite amount of primes, this isn't such a great discovery.

However, if we could find an algorithm to find every prime, it would be a great accomplishment.  And the more primes we know, the easier it is to do this.  Especially if we know the really high ones.


"In the real world, this would be a problem.  But in mathematics, we can just define a place where this problem doesn't exist.  So we'll go ahead and do that now..."

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#11 2006-01-07 10:28:21

mathsyperson
Moderator
Registered: 2005-06-22
Posts: 4,900

Re: So did you hear they found a new prime number?

Yes, but virtually nothing in pure maths is actually useful. smile
People just work out things like that to show that they can.
eg. The first number with a 'c' is one octillion.


Why did the vector cross the road?
It wanted to be normal.

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#12 2006-01-07 13:10:19

mikau
Member
Registered: 2005-08-22
Posts: 1,504

Re: So did you hear they found a new prime number?

Yes, but virtually nothing in pure maths is actually useful.

BLASPHEMY! yikes

But I take it you meant, math in itself is useless - untill applied to something.


A logarithm is just a misspelled algorithm.

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#13 2006-01-07 17:56:31

MathsIsFun
Administrator
Registered: 2005-01-21
Posts: 7,529

Re: So did you hear they found a new prime number?

Mathematics underpins nearly everything in the modern world.

Mathematics -> Science -> Engineering -> Technology -> Business -> Consumer

When a new mathematical idea comes along, the world changes.


"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

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#14 2006-01-07 18:27:50

mikau
Member
Registered: 2005-08-22
Posts: 1,504

Re: So did you hear they found a new prime number?

Here here! But it depends on the significance of the discovery. Is this significant enough to revolution math, science, engineering, technology and business? Or even change it in the slightest way? I doubt it.

But still well said, MathIsFun! :-)


A logarithm is just a misspelled algorithm.

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#15 2006-01-07 23:18:21

MathsIsFun
Administrator
Registered: 2005-01-21
Posts: 7,529

Re: So did you hear they found a new prime number?

Thanks!


"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

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#16 2006-07-29 08:17:45

Devantè
Real Member
Registered: 2006-07-14
Posts: 6,400

Re: So did you hear they found a new prime number?

Wow...a prime number that would fill a park with numbers (that is...if it were a sheet of paper). tongue

What do we do with it, though? I'd like to see someone who has the time and is actually interested in using up their whole life to find a unique pattern of numbers in the 9.1 million digit number.

(I'm kidding, of course tongue )

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#17 2006-07-29 12:33:03

Patrick
Real Member
Registered: 2006-02-24
Posts: 1,005

Re: So did you hear they found a new prime number?

Hehe, as it has been said a couple of times already: so what?  Well, who knows, maybe this will help someone do something some day smile


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