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Search: Posts Made By: robert44444uk
Forum: Open Projects 2014-08-01, 17:22
Replies: 587
Views: 64,317
Posted By robert44444uk
I gave up on this after a long primeless gap...

I gave up on this after a long primeless gap after 189/273212 and tested up to 345000. It is still one of only two candidate with 180 primes or more.

I have been working on a very impressive...
Forum: Open Projects 2014-07-19, 08:42
Replies: 587
Views: 64,317
Posted By robert44444uk
This should have read 182/212228 This...

This should have read 182/212228

This candidate is now at 186/250000 with a further one discovered at a higher n.
Forum: Open Projects 2014-07-13, 12:05
Replies: 587
Views: 64,317
Posted By robert44444uk
While I have been working on Jarek's candidates,...

While I have been working on Jarek's candidates, I also have some news from my own Riesel search. This candidate beats a number of records at the higher levels, and it is by no means certain that any...
Forum: Open Projects 2014-07-13, 11:58
Replies: 587
Views: 64,317
Posted By robert44444uk
Here are basis statistics around the prime counts...

Here are basis statistics around the prime counts for the 6,664 candidates at 10K. 6,279 of the were VPS. An astonishing 1,362 were 110 or more, and 11 at 120 or more.

The 339 at 114 or more have...
Forum: Open Projects 2014-07-13, 11:52
Replies: 587
Views: 64,317
Posted By robert44444uk
I finally got to take all of Jarek's 6,664...

I finally got to take all of Jarek's 6,664 candidates at 88 or more at 3K up to 10K, and then to take all those at 114 or more to 20K

I can't post all of the results for obvious reasons, but in...
Forum: Open Projects 2014-06-14, 12:13
Replies: 587
Views: 64,317
Posted By robert44444uk
Actually this was 100/2570, blowing the record...

Actually this was 100/2570, blowing the record away!

Other astounding stats, it was only 69/1000, but 80/1190! It got to 119/10000 so not the best, but still very robust with 125/13000
Forum: Open Projects 2014-06-14, 11:43
Replies: 587
Views: 64,317
Posted By robert44444uk
Very many congratulations, Jarek. A major...

Very many congratulations, Jarek. A major find.:bow:

I will take this one up to see how it performs
Forum: Open Projects 2014-05-28, 07:30
Replies: 587
Views: 64,317
Posted By robert44444uk
I ended this search at 169 primes R...

I ended this search at 169 primes

R 50013530105764248915 60 100/5084 122/10000 159/100000 169/187260
Forum: Open Projects 2014-05-28, 06:44
Replies: 587
Views: 64,317
Posted By robert44444uk
To avoid duplication I am in the latter stages of...

To avoid duplication I am in the latter stages of taking all of Jarek's finds, posted as 88@3K-1 and 88@3K-2 to at least 10K.

There are a couple of new 120+/10000 so far in the batch, the best...
Forum: Open Projects 2014-05-21, 07:30
Replies: 587
Views: 64,317
Posted By robert44444uk
And now 161/107700. There was a large gap between...

And now 161/107700. There was a large gap between the prime at 66052 and 95621 which is a real shame.

This candidate is the easily the second best Riesel at 161/103309, but 5 primes behind the...
Forum: Open Projects 2014-05-19, 22:08
Replies: 587
Views: 64,317
Posted By robert44444uk
157/75000 - will continue with this one

157/75000 - will continue with this one
Forum: Open Projects 2014-05-18, 17:48
Replies: 587
Views: 64,317
Posted By robert44444uk
I looked at some of Jarek's best Riesels - there...

I looked at some of Jarek's best Riesels - there are some gems that are being taken to higher levels, but the best of the lot:

R 50013530105764248915 60 100/5084 122/10000 146/37900
and counting
Forum: Open Projects 2014-05-16, 07:06
Replies: 587
Views: 64,317
Posted By robert44444uk
OMG!!! That is amazing. I'm running the...

OMG!!! That is amazing.

I'm running the remaining 1200 or so of Jarek's 88 and +/3000 up to 10000 to see if there are other stars.
Forum: Open Projects 2014-05-06, 09:12
Replies: 587
Views: 64,317
Posted By robert44444uk
Welcome Jarek. It does indeed! Thank you for...

Welcome Jarek. It does indeed! Thank you for putting your considerable computing resources to play to try to find the fasted Riesel or Sierpinski series to 100 primes.

The candidate, which in the...
Forum: Open Projects 2014-01-31, 11:30
Replies: 587
Views: 64,317
Posted By robert44444uk
I'm afraid I can't help at all on any of these...

I'm afraid I can't help at all on any of these things! it is all Double-Dutch to me.
Forum: Open Projects 2014-01-30, 17:26
Replies: 587
Views: 64,317
Posted By robert44444uk
2) and 3) is where the resources would be most...

2) and 3) is where the resources would be most wanted and as you say, would require the minimum adjustment to BOINC - the format would be familiar for most participants. There are 20,000 or so VPS...
Forum: Open Projects 2014-01-29, 12:51
Replies: 587
Views: 64,317
Posted By robert44444uk
I would have liked to have seen this done, but I...

I would have liked to have seen this done, but I think there is limited interest because it is really hard to get top 5000 primes. The prime testing takes three times longer than for small k.

RPS...
Forum: Open Projects 2013-08-08, 17:36
Replies: 587
Views: 64,317
Posted By robert44444uk
There were no more primes up to 250K so the...

There were no more primes up to 250K so the question marks can be taken off:

191 245288
192 255530
193 294807
194 318934
195 334623
196 334645
197 363020
198 376732
Forum: Open Projects 2013-08-06, 09:07
Replies: 587
Views: 64,317
Posted By robert44444uk
205

I am almost at the end of the range 200000 to 250000. There is another to report:

191? 245288
192? 255530
193? 294807
194? 318934
195? 334623
196? 334645
197? 363020
198? 376732
Forum: Open Projects 2013-07-31, 12:55
Replies: 587
Views: 64,317
Posted By robert44444uk
203!!!

Getting there slowly. Now up to 229074:

190 229069
191? 255530
192? 294807
193? 318934
194? 334623
195? 334645
196? 363020
197? 376732
Forum: Open Projects 2013-07-31, 12:04
Replies: 587
Views: 64,317
Posted By robert44444uk
I'm still only getting 10000 results for E268 and...

I'm still only getting 10000 results for E268 and E292.

Can you remind me what the program does, in terms of how many factors it tries to remove?
Forum: Open Projects 2013-07-31, 09:11
Replies: 587
Views: 64,317
Posted By robert44444uk
The way one does! Sigh. Might get to 230K today. ...

The way one does! Sigh. Might get to 230K today.

Robert
Forum: Open Projects 2013-07-30, 17:16
Replies: 587
Views: 64,317
Posted By robert44444uk
What lovely toy. I put all of my VPS through it...

What lovely toy. I put all of my VPS through it and produced the following:


Max Min Median
28 7190 6977 6989
36 7776 6878 7538
52 8405 7117 7799
58 8417 7089 7927.5
60 8661 7572 8087...
Forum: Open Projects 2013-07-30, 16:26
Replies: 587
Views: 64,317
Posted By robert44444uk
Hah, there is a surprise. It turns out that...

Hah, there is a surprise.

It turns out that the candidate has one of the weakest weights in its class of Riesel E130 Payams that are VPS.

A survey of 189 such candidates has a top weight of...
Forum: Open Projects 2013-07-30, 14:04
Replies: 587
Views: 64,317
Posted By robert44444uk
The lack of small factors clearly has large...

The lack of small factors clearly has large impact on any sieving. The candidate exhibits the following persistence:


Sieve limit candidates remaining

10^4 61.02%
10^5 ...
Showing results 1 to 25 of 278

 
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