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Forum: Five or Bust - The Dual Sierpinski Problem 2020-11-25, 14:27
Replies: 8
Views: 343
Posted By Puzzle-Peter
Cool. I've had my share of XXL certificates. No...

Cool. I've had my share of XXL certificates. No more...
Forum: Five or Bust - The Dual Sierpinski Problem 2020-11-24, 17:03
Replies: 8
Views: 343
Posted By Puzzle-Peter
Primo has a built-in limit on the candidate size....

Primo has a built-in limit on the candidate size. Marcel Martin increases the limit from time to time as better hardware allows for bigger tests. At the moment the limit is 132,928 bits which is...
Forum: And now for something completely different 2020-11-13, 11:24
Replies: 13
Views: 535
Posted By Puzzle-Peter
Oh the cruelty! :lol: When sieving for a...

Oh the cruelty! :lol:


When sieving for a 6tuplet, you eliminate a lot of possible 5tuplets because +8 or -8 gets sieved out. So you probably will have to use a larger candidate range. Does it...
Forum: And now for something completely different 2020-11-12, 11:37
Replies: 13
Views: 535
Posted By Puzzle-Peter
1) I didn't go for a number that is N-1...

1)
I didn't go for a number that is N-1 provable. I was looking for quintuplets, so Primo would be needed anyway. The problem is that the sieve files get very sparse when you search for n-tuplets....
Forum: And now for something completely different 2020-11-06, 11:28
Replies: 13
Views: 535
Posted By Puzzle-Peter
Thanks! That explains why the n=0 number was...

Thanks!

That explains why the n=0 number was provable via N-1. The long number fell out of a script I knocked together for CRT. I didn't investigate further as I was happy enough it ran without...
Forum: And now for something completely different 2020-11-05, 12:04
Replies: 13
Views: 535
Posted By Puzzle-Peter
New quintuplet

Hey folks,


I found a nice prime quintuplet with 2002 decimal digits:


208488047305875799520424701159167603377978422253392827160551251670223210710614891907691541641382959723840996115289...
Forum: Conjectures 'R Us 2020-09-13, 07:42
Replies: 296
Sticky: News
Views: 35,028
Posted By Puzzle-Peter
Wow, that is bad news. RIP Ian. At least we...

Wow, that is bad news. RIP Ian.
At least we know of his passing. With most members we probably wouldn't and they would simply disappear.
Forum: Computer Science & Computational Number Theory 2020-02-13, 14:50
Replies: 33
Views: 10,768
Posted By Puzzle-Peter
What a monster. Congrats!

What a monster. Congrats!
Forum: And now for something completely different 2020-01-23, 08:29
Replies: 47
Views: 10,666
Posted By Puzzle-Peter
18416522281203*2^33222-1 ...

18416522281203*2^33222-1
18416522281203*2^33222+5
18416522281203*2^33222+11

Primo certificates for the latter two are uploaded to factordb
Forum: And now for something completely different 2019-10-02, 19:25
Replies: 47
Views: 10,666
Posted By Puzzle-Peter
I had a bit of fun with (x+2)*(ax²-3) ...

I had a bit of fun with (x+2)*(ax²-3) -1 / +5
= -3x - 6 +a(x³+2x²) -1 / +5

helpers are x for N+1 proof of the +5 candidate and x+2 for N+1 proof of the -1 candidate, so...
Forum: Miscellaneous Math 2019-09-19, 15:40
Replies: 16
Views: 895
Posted By Puzzle-Peter
What about triplets p, p+4, p+6?

What about triplets p, p+4, p+6?
Forum: Conjectures 'R Us 2019-07-09, 15:44
Replies: 3,779
Views: 242,773
Posted By Puzzle-Peter
As I don't have any LLRing reservations at the...

As I don't have any LLRing reservations at the moment, I can do some sieving. If you like, give me a file and I'll sieve it.
Forum: Twin Prime Search 2019-07-05, 12:53
Replies: 13
Views: 6,644
Posted By Puzzle-Peter
During the holiday season I am granted access to...

During the holiday season I am granted access to a Nvidia Tesla system in exchange for taking care of the house and the cat lol. I would like to see how fast tpsieve-cuda will run on this but it is...
Forum: Twin Prime Search 2019-07-04, 18:26
Replies: 13
Views: 6,644
Posted By Puzzle-Peter
I had a look at the source, but that's not what I...

I had a look at the source, but that's not what I am very good at. I learned it is "built from the ppsieve package" but I am at a loss at how to get a tpsieve from that?


I had a hard time...
Forum: And now for something completely different 2019-06-24, 18:26
Replies: 47
Views: 10,666
Posted By Puzzle-Peter
Had my machine fool around with polysieve and...

Had my machine fool around with polysieve and pfgw when I was on vacation. This is what I came back to:


3039197559912*2^5000+17
3039197559912*2^5000+11
3039197559912*2^5000+5...
Forum: And now for something completely different 2019-05-26, 18:25
Replies: 9
Views: 1,755
Posted By Puzzle-Peter
I'm afraid there is no documentation apart from...

I'm afraid there is no documentation apart from what you find in the code.


Just to make sure:
What is the running variable in your example?
Forum: And now for something completely different 2019-05-23, 17:22
Replies: 9
Views: 1,755
Posted By Puzzle-Peter
The gmp version of polysieve should be rather...

The gmp version of polysieve should be rather easy to adapt. It is not originally written for this kind of task, but with the correct input it will be doing this. The major modification will be...
Forum: Conjectures 'R Us 2019-05-13, 14:41
Replies: 2,206
Views: 158,323
Posted By Puzzle-Peter
R366 tested to n=2M, still one k remaining....

R366 tested to n=2M, still one k remaining. Releasing base.
Forum: And now for something completely different 2019-05-13, 14:39
Replies: 47
Views: 10,666
Posted By Puzzle-Peter
10409207693*(2^20000)-1 10409207693*(2^20000)+5...

10409207693*(2^20000)-1
10409207693*(2^20000)+5

10409207693*(2^20000)+11


Not searching this particular form any further, so now I'll update wikipedia. Not sure about trying something a...
Forum: And now for something completely different 2019-05-08, 14:45
Replies: 47
Views: 10,666
Posted By Puzzle-Peter
8704161957*(2^20000)-1 8704161957*(2^20000)+5 ...

8704161957*(2^20000)-1
8704161957*(2^20000)+5
8704161957*(2^20000)+11


+5 and +11 proven with PRIMO
Forum: FactorDB 2019-05-04, 08:20
Replies: 457
Views: 45,663
Posted By Puzzle-Peter
The really big one came through upload.

The really big one came through upload.
Forum: FactorDB 2019-05-02, 15:24
Replies: 457
Views: 45,663
Posted By Puzzle-Peter
There must have been an update to factordb‘s...

There must have been an update to factordb‘s hardware. The certificate was verified within a few hours where I expected several days.
Forum: FactorDB 2019-05-01, 07:59
Replies: 457
Views: 45,663
Posted By Puzzle-Peter
After emailing with Markus the problem has been...

After emailing with Markus the problem has been solved. The upload limit was set to 16MB which was not enough for my certificate. He raised the limit and now it is working again.


I was even able...
Forum: FactorDB 2019-04-25, 19:53
Replies: 457
Views: 45,663
Posted By Puzzle-Peter
I have submitted zipped and unzipped without...

I have submitted zipped and unzipped without problems, but sometimes a certificate does not provoke any reaction from the db. They simply disappear immediately after uploading.
Forum: FactorDB 2019-04-25, 19:25
Replies: 457
Views: 45,663
Posted By Puzzle-Peter
I sent it to Markus via email and he plugged it...

I sent it to Markus via email and he plugged it into the db seemingly without problems. I do not understand.
Showing results 1 to 25 of 676

 
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