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Forum: Conjectures 'R Us 2021-06-13, 06:20
Replies: 179
Views: 61,381
Posted By gd_barnes
I have added R578 to n=200K to the recommended...

I have added R578 to n=200K to the recommended list. This base is low-weight and is the lowest "relative difficulty" base that we have that is not in the 2021 goals. Therefore it can easily be...
Forum: Conjectures 'R Us 2021-06-06, 06:40
Replies: 179
Views: 61,381
Posted By gd_barnes
If you see any 1k bases that are not sieved to...

If you see any 1k bases that are not sieved to n=1M, that would be the first priority.

Another area to sieve would be bases with 11 or 12 k's remaining at n=100K. You could sieve those for...
Forum: Conjectures 'R Us 2021-06-05, 06:17
Replies: 1,100
Views: 98,727
Posted By gd_barnes
Thanks for the update.

Thanks for the update.
Forum: Conjectures 'R Us 2021-06-04, 03:29
Replies: 6
Views: 3,480
Posted By gd_barnes
With Pepi's recent large-prime proof of R650 that...

With Pepi's recent large-prime proof of R650 that leaves us just one away from completing goals 1 and 8. :-)
Forum: Conjectures 'R Us 2021-06-04, 03:22
Replies: 301
Sticky: News
Views: 56,283
Posted By gd_barnes
I will be out of town until about June 16th. I...

I will be out of town until about June 16th. I am keeping the web pages updated locally while I am gone. They will be uploaded to the server after I get back.

If you see an asterisk "*"...
Forum: Conjectures 'R Us 2021-06-03, 16:41
Replies: 944
Views: 108,179
Posted By gd_barnes
A big congrats! Very nice find! :-) :bow...

A big congrats! Very nice find! :-)

:bow wave:
Forum: Prime Gap Searches 2021-06-01, 04:18
Replies: 18
Views: 1,185
Posted By gd_barnes
Yes it's definitely over 7 billion years...

Yes it's definitely over 7 billion years but...it's much worse than that:

2^64 = 18,446,744,073,709,551,616 (~1.8447 * 10^19)

2^64 / 3600 seconds per hour / 24 hour per day / ~365.25 days per...
Forum: Conjectures 'R Us 2021-05-30, 04:40
Replies: 301
Sticky: News
Views: 56,283
Posted By gd_barnes
I have some exciting news: The Riesel base 2...

I have some exciting news:

The Riesel base 2 2nd conjecture has been added to the project!

This makes the Riesel and Sierp sides at CRUS equal in that regard and gives the project a base 2...
Forum: Conjectures 'R Us 2021-05-22, 19:38
Replies: 179
Views: 61,381
Posted By gd_barnes
More sieve files added.

More sieve files added.
Forum: And now for something completely different 2021-05-21, 19:38
Replies: 289
Views: 48,260
Posted By gd_barnes
I am going to remove the web page that I have...

I am going to remove the web page that I have been updating that shows bases, primes, and reservations and turn updates over to the Wiki. Karsten has done a nice job setting that up and keeping it...
Forum: Conjectures 'R Us 2021-05-20, 19:20
Replies: 6
Views: 3,480
Posted By gd_barnes
Updated. Actually Goal 4 will be by far the most...

Updated. Actually Goal 4 will be by far the most difficult. It is unlikely to finish although I will throw many of my machines at it for awhile later in the year to give it a reasonable shot.
...
Forum: And now for something completely different 2021-05-19, 20:09
Replies: 289
Views: 48,260
Posted By gd_barnes
For future historical reference (and a bit of my...

For future historical reference (and a bit of my own sanity) can you please post which bases and n-range that you searched? For all that I know Karsten's links that you referred to when reserving...
Forum: Riesel Prime Search 2021-05-19, 19:15
Replies: 414
Views: 73,543
Posted By gd_barnes
k=10005 has a large prime gap so I double-checked...

k=10005 has a large prime gap so I double-checked it for n=0-1.25M.

34 primes confirmed; no problems found.

Results attached.
Forum: And now for something completely different 2021-05-17, 07:04
Replies: 289
Views: 48,260
Posted By gd_barnes
I won't be showing that quantity of reservations....

I won't be showing that quantity of reservations. Good luck! :-)
Forum: And now for something completely different 2021-05-16, 07:43
Replies: 8
Views: 737
Posted By gd_barnes
Per the pages that Karsten linked to in the 1st...

Per the pages that Karsten linked to in the 1st post here and using your primes reported in the other thread and here, several of which were already on Karsten's page:

None of your Carol primes...
Forum: And now for something completely different 2021-05-15, 06:43
Replies: 289
Views: 48,260
Posted By gd_barnes
Are you testing both the Carol and Kynea side?

Are you testing both the Carol and Kynea side?
Forum: Twin Prime Search 2021-05-15, 04:49
Replies: 259
Views: 47,498
Posted By gd_barnes
Reviving an old effort: Here is an updated...

Reviving an old effort:

Here is an updated web page for all k*2^n-+1 twins for k<100K and n<=50K:
http://www.noprimeleftbehind.net/gary/twins100K.htm

Here is an updated web page for all...
Forum: Twin Prime Search 2021-05-13, 21:13
Replies: 235
Views: 80,462
Posted By gd_barnes
840k-880k has been loaded.

840k-880k has been loaded.
Forum: And now for something completely different 2021-05-12, 00:15
Replies: 8
Views: 737
Posted By gd_barnes
The main project page has been updated to include...

The main project page has been updated to include all bases with search depth n>=10K.

Karsten, if you can post in the reservations thread whenever you search a base to n>=10K that would be helpful.
Forum: And now for something completely different 2021-05-11, 09:38
Replies: 8
Views: 737
Posted By gd_barnes
It gets updated with whatever is posted in these...

It gets updated with whatever is posted in these threads plus the occasional look at Karsten's page. The original idea behind that page is that we would only show bases that were searched to...
Forum: Riesel Prime Search 2021-05-10, 20:57
Replies: 414
Views: 73,543
Posted By gd_barnes
k=32767: This one is currently reserved by...

k=32767:

This one is currently reserved by Diep for n=5M-30M. Since it is so low weight I thought it would be interesting to see if there were any more primes up to n=1M.

Double-check complete...
Forum: Riesel Prime Search 2021-05-10, 20:48
Replies: 414
Views: 73,543
Posted By gd_barnes
k=8847: Double-check complete to n=500K. No...

k=8847:

Double-check complete to n=500K. No problems found.

Hole filled for n=500K-700K. In addition to confirming the 3 previously found primes, one additional prime was found:...
Forum: Riesel Prime Search 2021-05-10, 05:46
Replies: 1,031
Views: 140,321
Posted By gd_barnes
After several attempts to contact Kosmaj followed...

After several attempts to contact Kosmaj followed by a several week wait and a discussion with Dave and Thomas, it was decided to release Kosmaj's reservations for k=7, 21, and 77.

Therefore:...
Forum: And now for something completely different 2021-05-08, 01:21
Replies: 289
Views: 48,260
Posted By gd_barnes
Karsten, CK 362 has not had any progress...

Karsten,


CK 362 has not had any progress since Aug. 2019. Will you be working on it in the future?
Forum: Riesel Prime Search 2021-05-07, 23:03
Replies: 459
Views: 54,044
Posted By gd_barnes
The 2nd post in this thread here needs to have...

The 2nd post in this thread here needs to have the most recent 3 primes added to it:
117*2^2117600-1
185*2^2127966-1
187*2^2172693-1

This makes a total of 47 primes for the drive...21 out of 30...
Showing results 1 to 25 of 1000

 
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