mersenneforum.org  

Go Back   mersenneforum.org > Great Internet Mersenne Prime Search > News

Reply
 
Thread Tools
Old 2013-02-05, 21:21   #408
Xyzzy
 
Xyzzy's Avatar
 
"Mike"
Aug 2002

2×23×179 Posts
Default

Quote:
I wonder if Curtis Cooper is going to send us those pins again...
We have inquired about the buttons and we have been told they are thinking about it.

Xyzzy is offline   Reply With Quote
Old 2013-02-05, 21:26   #409
Xyzzy
 
Xyzzy's Avatar
 
"Mike"
Aug 2002

100000001010102 Posts
Default

We asked Professor Cooper a few questions:

1 - Where is the lucky computer located?
2 - When it was found was it beeping frantically?
3 - Are you planning to sell the computer on eBay?

Quote:
The naming convention we use for computers here at the University of Central Missouri is crazy. The name of the machine that found M57885161 is:

ml--wd-210--22l

The ml-- is a 4 letter code for the department where the computer is located. That is the Modern Language department. The wd- is a 3 letter code for the building. That is the Wood building. The 210- is the 4-digit code for the room number: 210. And the -22l is the 22nd computer in the lab. Wood 210 is a computer classroom/lab where they teach modern language classes. I think there are about 30 computers in that lab. The Wood building houses the departments of History, Political Science, Communications, and Modern Languages.

Wood has been the location of all 3 of our Mersenne discoveries.

commwd-102--07l
commwd-102--04l
ml--wd-210--22l

We are running GIMPS in many buildings at UCM: Wood, Martin, Science, Grinstead, Library, Ward Edwards, Lovinger (all in Warrensburg), and our Central Summit Center in Lee's Summit. It is amazing that all of our discoveries were in the Wood building. But our Information Services tech in that building is one of the best and understands what we are doing. He lets me know when things happen in that building so I can attend to them.

The computers running in our labs have their sound turned off. So there was no beeping.

The IS tech in Wood has paid attention to our computers that have discovered the Mersenne primes. I don't know exactly what has happened to them but they have talked about putting those computers in the university museum.
Xyzzy is offline   Reply With Quote
Old 2013-02-05, 21:43   #410
ixfd64
Bemusing Prompter
 
ixfd64's Avatar
 
"Danny"
Dec 2002
California

239510 Posts
Default

Fox News: http://www.foxnews.com/science/2013/...ber-discovered

Quote:
World’s largest prime number discovered -- all 17 million digits
*sigh*

Quote:
There are only 48 known Mersenne primes.

Last fiddled with by ixfd64 on 2013-02-05 at 21:44
ixfd64 is offline   Reply With Quote
Old 2013-02-05, 22:10   #411
chappy
 
chappy's Avatar
 
"Jeff"
Feb 2012
St. Louis, Missouri, USA

48516 Posts
Default

Quote:
Originally Posted by Xyzzy View Post
We asked Professor Cooper a few questions:

1 - Where is the lucky computer located?
2 - When it was found was it beeping frantically?
3 - Are you planning to sell the computer on eBay?
what does a Liberal Arts major say after graduation? Would you like fries with that record prime?
chappy is offline   Reply With Quote
Old 2013-02-05, 22:33   #412
kracker
 
kracker's Avatar
 
"Mr. Meeseeks"
Jan 2012
California, USA

87816 Posts
Default



15 members!

EDIT: Is it just me or is mersenne.org really, really, slow? Traffik jam?
EDIT2: and after a while I get "pnErrorResult=3 pnErrorDetail=Database unavailable ==END=="
Attached Thumbnails
Click image for larger version

Name:	m48thread.jpg
Views:	89
Size:	158.6 KB
ID:	9286  

Last fiddled with by kracker on 2013-02-05 at 22:35
kracker is offline   Reply With Quote
Old 2013-02-05, 23:15   #413
ixfd64
Bemusing Prompter
 
ixfd64's Avatar
 
"Danny"
Dec 2002
California

5×479 Posts
Default

Ars Technica: http://arstechnica.com/science/2013/...t-prime-number
ixfd64 is offline   Reply With Quote
Old 2013-02-05, 23:34   #414
chalsall
If I May
 
chalsall's Avatar
 
"Chris Halsall"
Sep 2002
Barbados

262716 Posts
Default

Quote:
Originally Posted by ixfd64 View Post
At least they got the title, and the first paragraph, partially correct....
chalsall is online now   Reply With Quote
Old 2013-02-05, 23:42   #415
ixfd64
Bemusing Prompter
 
ixfd64's Avatar
 
"Danny"
Dec 2002
California

5×479 Posts
Default

Quote:
Originally Posted by ixfd64 View Post
Fox News: http://www.foxnews.com/science/2013/...ber-discovered

Quote:
There are only 48 known Mersenne primes.
I mistakenly thought Fox News had omitted "known" from the sentence. It seems I'm getting accustomed to those mathematically illiterate reporters. However, I did notice two other errors:

Quote:
The number -- 2 multiplied by itself 57,885,161 times, written mathematically as 257,885,161-1 -- is the first prime discovered in four years.
1. The editor forgot "minus 1" in the first part.
2. M57,885,161 is not the "first prime" to be discovered in four years.

Last fiddled with by ixfd64 on 2013-02-05 at 23:47
ixfd64 is offline   Reply With Quote
Old 2013-02-06, 00:20   #416
ixfd64
Bemusing Prompter
 
ixfd64's Avatar
 
"Danny"
Dec 2002
California

1001010110112 Posts
Default

I've started an article on Wikinews: http://en.wikinews.org/wiki/Record_s...it_prime_found

Feel free to improve it, but remember to stick to the facts.
ixfd64 is offline   Reply With Quote
Old 2013-02-06, 00:58   #417
M29
 
M29's Avatar
 
Dec 2003

22×41 Posts
Default

Quote:
2 multiplied by itself 57,885,161 times...
This is a pet peeve of mine.

23-1 = 2 * 2 * 2 - 1

23-1 is not "2 multiplied by itself 3 times, less 1".

It is "2 multiplied by itself 2 times, less 1".

Or am I missing something?
M29 is offline   Reply With Quote
Old 2013-02-06, 01:07   #418
diep
 
diep's Avatar
 
Sep 2006
The Netherlands

36 Posts
Default

Quote:
Originally Posted by aketilander View Post
According to the Lenstra–Pomerance–Wagstaff conjecture we are supposed to find 5.92 Mersenne primes between 10M-digits Mersennes and 100M-digits Mersennes. We have already found 4 between 10M-digits and 18M-digits and many below 18M-digits untested.

That's what I call heads!!!

... or there might be something wrong with the conjecture???
If finding primes would be the same as cycling, then no amount of EPO could've achieved this luck indeed.
diep is offline   Reply With Quote
Reply



Similar Threads
Thread Thread Starter Forum Replies Last Post
I think I discovered new largest prime harrik Miscellaneous Math 8 2020-07-14 20:06
Number of zero's in largest prime... Heather Math 90 2006-04-01 22:06
Largest known prime not Mersenne? Orgasmic Troll Lounge 5 2005-12-23 22:00
Sixth bigest prime (no Mersenne's) discovered! gbvalor Math 4 2004-01-08 20:52
New largest prime number??? McBryce Lounge 39 2003-08-12 19:35

All times are UTC. The time now is 03:13.


Mon Aug 2 03:13:13 UTC 2021 up 9 days, 21:42, 0 users, load averages: 1.33, 1.34, 1.38

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.