mersenneforum.org  

Go Back   mersenneforum.org > Prime Search Projects > Sierpinski/Riesel Base 5

Closed Thread
 
Thread Tools
Old 2005-02-22, 19:30   #45
robert44444uk
 
robert44444uk's Avatar
 
Jun 2003
Oxford, UK

11·173 Posts
Default Moving out

Group

It appears it is time to graduate from "fun stuff" but the thing is how? It seems to me there is a gentlemenly protocol here.

I think we need to be invited to another forum, maybe "prime sierpinski project" but we need to be invited as we would not like people to think we are stealing their valued members and resources. Or we could start a new forum in preparation for the Riesel exercise that Geoff and I are preparing the group for.

And then there is the question of moving all the messages out, rather than just starting again.

If anyone has an idea please post it, or even better move the threads to a nice new home.

Regards

Robert Smith
robert44444uk is offline  
Old 2005-02-23, 00:01   #46
geoff
 
geoff's Avatar
 
Mar 2003
New Zealand

13×89 Posts
Default

If a new forum is created I think it is possible to just move this thread there, I think that is how some other projects started. I volunteer to be a moderator if needed.

results: 86354*5^53329+1 is prime.
releasing: 83936, 84284 (no primes for n <= 100,000).
reserving: 90056, 90676
geoff is offline  
Old 2005-02-23, 23:45   #47
robert44444uk
 
robert44444uk's Avatar
 
Jun 2003
Oxford, UK

76F16 Posts
Default Decision time

I think if Geoff can organise to set up a new forum with stickies right left and centre then this is the best solution. We should have at least two threads, Sierpinski and Riesel. Geoff you should send a private message to one of the organisers of the Mersenne site to arrange it.

Here are some results for the 110000-120000 range, apologies for duplications. I give up my reservations in this range.

No primes and highest tested:

110242 52766
110488 55772
110846 31969
111382 55774
111424 53896
111688 51102
113156 62153
117434 64335
118388 50885
118568 139237

One prime:

111502 134008
111994 30446
114158 45859
118450 41654

I reserve candidates in the 140000 to 150000 range.

Regards

Robert Smith
robert44444uk is offline  
Old 2005-02-25, 00:39   #48
geoff
 
geoff's Avatar
 
Mar 2003
New Zealand

22058 Posts
Default New Forum

I have created the sticky reservation threads, so the forum is functional now. Please check your existing reservations and let me know if there are any mistakes.

Still needed are posts to explain to newcomers what the project is about, how to get started, etc.. If anyone can help with this then please do, otherwise I will get around to it in the next week.

What do you think is the best way to record the primes found so far? I will keep the text files at http://www.geocities.com/g_w_reynolds/Sierpinski5/ and http://www.geocities.com/g_w_reynolds/Riesel5/ updated for now, but maybe a results thread would be better?

Any other suggestions for the forum, let me know.

Last fiddled with by geoff on 2005-02-25 at 03:08
geoff is offline  
Old 2005-02-26, 18:52   #49
masser
 
masser's Avatar
 
Jul 2003
wear a mask

2·733 Posts
Default

129028*5^32462+1 is prime!
masser is offline  
Old 2005-04-18, 03:37   #50
geoff
 
geoff's Avatar
 
Mar 2003
New Zealand

13·89 Posts
Default

Congratulations masser, this prime made it into the top 5000:
Quote:
Originally Posted by masser (in the reservations thread)
Found the following prime: 76246*5^83568+1
link

Last fiddled with by geoff on 2005-04-18 at 03:39 Reason: add link
geoff is offline  
Old 2005-05-24, 15:25   #51
masser
 
masser's Avatar
 
Jul 2003
wear a mask

2·733 Posts
Default

128896*5^89436+1 is prime!
masser is offline  
Old 2005-05-28, 07:53   #52
axn
 
axn's Avatar
 
Jun 2003

17·281 Posts
Default

159106*5^89982+1 is prime!!
axn is online now  
Old 2005-06-03, 18:27   #53
ValerieVonck
 
ValerieVonck's Avatar
 
Mar 2004
Belgium

11010001012 Posts
Default

53858*5^33760-1 is prime! 23602 digits
ValerieVonck is offline  
Old 2005-06-06, 08:03   #54
Footmaster
 
Footmaster's Avatar
 
Mar 2004

3910 Posts
Default

98288*5^42133+1 is Prime!
Footmaster is offline  
Old 2005-06-07, 07:29   #55
Footmaster
 
Footmaster's Avatar
 
Mar 2004

3×13 Posts
Default

77908*5^47338+1 is Prime!
Footmaster is offline  
Closed Thread

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sierpinski and Riesel number (Fixed k, Variable base) Citrix Sierpinski/Riesel Base 5 16 2017-02-09 15:55
Definition of Sierpinski/Riesel number base b sweety439 Conjectures 'R Us 32 2016-12-16 22:31
Sierpinski/Riesel Base 10 rogue Conjectures 'R Us 11 2007-12-17 05:08
Sierpinski / Riesel - Base 23 michaf Conjectures 'R Us 2 2007-12-17 05:04
Sierpinski / Riesel - Base 22 michaf Conjectures 'R Us 49 2007-12-17 05:03

All times are UTC. The time now is 09:15.

Wed Nov 25 09:15:35 UTC 2020 up 76 days, 6:26, 4 users, load averages: 1.30, 1.50, 1.40

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, 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.