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Search: Posts Made By: Gelly
Forum: Miscellaneous Math 2021-03-02, 15:49
Replies: 5
Views: 240
Posted By Gelly
If it's not a prime distance away, it would have...

If it's not a prime distance away, it would have to be at least (n+1)^2.

Otherwise, n!+d will be divisible by the smallest prime factor of d, since the smallest prime factor of d will be smaller...
Forum: And now for something completely different 2021-02-04, 13:49
Replies: 47
Views: 14,490
Posted By Gelly
Wow, that's a good one. Nice work! In the...

Wow, that's a good one. Nice work!

In the meantime, I have been meaning to (actually) prove the cofactor to Bern(8286), only to find what is the strangest return I have seen in a while from Primo:...
Forum: And now for something completely different 2021-02-02, 23:14
Replies: 47
Views: 14,490
Posted By Gelly
mhm. i imagine it's not a super big deal, but i...

mhm. i imagine it's not a super big deal, but i don't know how to let caldwell know based on the page.
Forum: And now for something completely different 2021-02-02, 17:32
Replies: 47
Views: 14,490
Posted By Gelly
i did it twice. i proved the bern(8766) with...

i did it twice.

i proved the bern(8766) with ecpp twice.

it'll be a bit before i get the cofactor of bern(8286).

ughhhhhhh.
Forum: And now for something completely different 2021-01-03, 06:52
Replies: 47
Views: 14,490
Posted By Gelly
Yup! Using the formula you provided in the second...

Yup! Using the formula you provided in the second post, it's 3.6% done.

I recall the split being between 4 and 5 being something you could determine using heuristic arguments - on Wikipedia, they...
Forum: And now for something completely different 2021-01-03, 05:55
Replies: 47
Views: 14,490
Posted By Gelly
Got the wrong one. I evidently don't understand...

Got the wrong one. I evidently don't understand how to order candidates in Primo right, so instead I proved 798*Bern(8766)/(487*4657*6468702182951641) (23743 digits).

Currently being verified by...
Forum: EdH 2020-12-09, 01:06
Replies: 115
Views: 23,237
Posted By Gelly
Having an identical issue with multiple...

Having an identical issue with multiple definition of <INSERT VARIABLE HERE>. Seems to have some relation to msieve, as yafu.h is fighting with "factor/qs/msieve/lanczos.o" and "factor/nfs/snfs.o"
...
Forum: Miscellaneous Math 2020-11-26, 04:01
Replies: 4
Views: 378
Posted By Gelly
There is a program called PFGW which will take...

There is a program called PFGW which will take just about anything you throw at it and run a probable prime test that is better than just looking at some digits of it. Just put the number into a text...
Forum: Puzzles 2020-11-25, 17:19
Replies: 34
Views: 2,259
Posted By Gelly
Trivial improvement to the original solution - 10...

Trivial improvement to the original solution - 10 numbers

666+666+666-(666+666+666+666)/666+13+13
Forum: And now for something completely different 2020-11-23, 22:11
Replies: 47
Views: 14,490
Posted By Gelly
Done! Took longer than it should have, as I'm...

Done! Took longer than it should have, as I'm running double duty on a bunch of silly projects with too few computers, but it's done. As an added bonus, this one managed to get onto FactorDB, so no...
Forum: Miscellaneous Math 2020-11-20, 20:13
Replies: 10
Views: 1,145
Posted By Gelly
It's exactly what you think it is. (primes...

It's exactly what you think it is.

(primes with a gap of six: p and p+6 are prime)
Forum: Miscellaneous Math 2020-11-06, 21:25
Replies: 80
Views: 9,036
Posted By Gelly
Here's the issue many forumites have with your...

Here's the issue many forumites have with your approach and why you may consider responses to your research hostile:

You claimed to "have a milestone" in integer factorization and continue...
Forum: And now for something completely different 2020-11-01, 17:58
Replies: 47
Views: 14,490
Posted By Gelly
Someone mentioned to me another list that is...

Someone mentioned to me another list that is outdated in terms of compute power is the Unique Primes list, so I'll be proving Phi(79710,10) (PRP21248)
Forum: And now for something completely different 2020-09-25, 12:17
Replies: 47
Views: 14,490
Posted By Gelly
Done! 4132590s (47.8 days). Once Marcel puts it...

Done! 4132590s (47.8 days). Once Marcel puts it up and I submit to Prime Pages, it should be the largest Mersenne Cofactor proven prime by a fair bit.

For the time being, since I want to wait on...
Forum: Software 2020-09-17, 15:44
Replies: 287
Views: 50,352
Posted By Gelly
For 3^n+2, I did srsieve2 -n 1 -N 1000000...

For 3^n+2, I did srsieve2 -n 1 -N 1000000 -s"27*3^n+2".
For 3^n-2, I did the same but with "27*3^n-2".

Similar results occur for -s"1*3^n+2" and fails to parse -s"3^n+2", as expected.

Edit: I...
Forum: Software 2020-09-17, 05:06
Replies: 287
Views: 50,352
Posted By Gelly
It's likely that I'm very dense (as is standard),...

It's likely that I'm very dense (as is standard), but I'm having whack-o issues attempting to run srsieve2 on sequences like 3^n+2 or 3^n-2. This might be along the lines of trying to use a...
Forum: Miscellaneous Math 2020-08-19, 22:02
Replies: 57
Views: 11,984
Posted By Gelly
I would like to bring my own personal attention,...

I would like to bring my own personal attention, and perhaps yours, to section 7 - Prime Generator Properties. In particular, you mention for multiple paragraphs that the properties of prime numbers...
Forum: Math 2020-08-18, 01:51
Replies: 3
Views: 2,628
Posted By Gelly
1. Pocklington and Morrison utilize a factored...

1. Pocklington and Morrison utilize a factored part of 33.333...% (minus some small amount of digits, with a wiggle factor m) of N+1 or N-1. The details are in the paper here...
Forum: FactorDB 2020-08-08, 13:14
Replies: 460
Views: 61,119
Posted By Gelly
Are there issues with certificate uploading at...

Are there issues with certificate uploading at the moment? I've tried, on three separate occasions, to upload a 37 MB certificate, with no indication of validation in status. Is there a weekly...
Forum: And now for something completely different 2020-08-07, 22:40
Replies: 47
Views: 14,490
Posted By Gelly
Talking It's done! Precise count is 3934149s (45.5 days),...

It's done! Precise count is 3934149s (45.5 days), although I had another decent power outage that had it not working for about a day. Seems like it saved the time stats correctly, though! Uploaded on...
Forum: Miscellaneous Math 2020-07-23, 02:57
Replies: 18
Views: 3,408
Posted By Gelly
Talking Here's a fun one! This is mostly irrelevant to...

Here's a fun one! This is mostly irrelevant to what I've been working on for the questions in this thread, which at this point are mostly answered, but I don't know where else to put it so I'll just...
Forum: Miscellaneous Math 2020-07-20, 13:12
Replies: 18
Views: 3,408
Posted By Gelly
Talking I finished the next step in multi-base Sierpinski...

I finished the next step in multi-base Sierpinski numbers, at least for my own discovery - a number that is Brier for base 3 (k*3^n is never adjacent to a prime).
I also did a little work to try to...
Forum: Miscellaneous Math 2020-07-15, 23:06
Replies: 18
Views: 3,408
Posted By Gelly
Cool! I'm glad to know that there's some proof...

Cool! I'm glad to know that there's some proof for k for multiple bases and, knowing CRT, you could probably extend that to infinitely many bases - although I imagine one would have to be careful,...
Forum: Miscellaneous Math 2020-07-15, 21:26
Replies: 18
Views: 3,408
Posted By Gelly
Oh, are there solutions in there for 2, 3 that...

Oh, are there solutions in there for 2, 3 that are Sierpinski for both bases? If so, I'd like to understand how those txt files show that!
Forum: Miscellaneous Math 2020-07-15, 20:51
Replies: 18
Views: 3,408
Posted By Gelly
Talking I think I found a solution for b = 2 and b = 3,...

I think I found a solution for b = 2 and b = 3, by doing some hacky work to combine covering sets. I constructed the covering sets such that I could share the most primes between them, and to fill...
Showing results 1 to 25 of 30

 
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