PrimeGrid
Please visit donation page to help the project cover running costs for this month

Toggle Menu

Join PrimeGrid

Returning Participants

Community

Leader Boards

Results

Other

drummers-lowrise
1) Message boards : Generalized Fermat Prime Search : DO YOU FEEL LUCKY? (Message 125609)
Posted 54 days ago by Profile GellyProject donor
Last year I got my first ever prime in TDP on a whim and I haven't achieved any other prime since, so, yeah, I'm guessing February is the best month for primes :D
2) Message boards : Number crunching : Badges III (Message 125227)
Posted 62 days ago by Profile GellyProject donor


The question is whether I keep going for PPS to get rid of double bronze or I try to double bronze another GPU project.
3) Message boards : Number crunching : Badges III (Message 124024)
Posted 86 days ago by Profile GellyProject donor


Finally netted after so long. Maybe SOB will go so fast that the next badge I get will be the first with non-double check tasks
4) Message boards : General discussion : Stupid question (Message 122957)
Posted 117 days ago by Profile GellyProject donor
Lucas-Lehmer-Riesel. A combination of their work in number theory has created a test for prime numbers, as noted in this wikipedia article.

https://en.wikipedia.org/wiki/Lucas%E2%80%93Lehmer%E2%80%93Riesel_test
5) Message boards : General discussion : I will match donations up to a TOTAL amount of 50 Euro (Message 121718)
Posted 145 days ago by Profile GellyProject donor
I just donated €25, as well. I guess it's kinda boring to have only two users donate the matching donations, but I needed an excuse to donate more money to PG. Thanks much!
6) Message boards : Number crunching : Credit Milestones (Message 121086)
Posted 162 days ago by Profile GellyProject donor
100M
7) Message boards : General discussion : Lindelöf hypothesis formally proved (Message 119154)
Posted 268 days ago by Profile GellyProject donor
I agree that Fokas seems to be well-grounded and researched in his discovery, and would not call him a crockpot. I was just surprised at his use of arXiv, though if what is being said about arXiv becoming more legitimate and acceptable is true, then I have no doubts that what has been discovered is legitimate as he says it is.

Wikipedia was very quick to jump on the gun about "him claiming a proof", as previous edits of the page indicate. Now it seems the truth is that he has another approach to a proof, with more rigor coming in another paper. Perhaps a full proof of the hypothesis will come soon.
8) Message boards : General discussion : Lindelöf hypothesis formally proved (Message 119105)
Posted 270 days ago by Profile GellyProject donor
"first published on arXiv" usually doesn't bode well for a proof, right? I'd expect an important result like this to be clamored over in other journals and arXiv, historically, seems to be the grounds for amateurs and crackpots.

Though, I suppose Viterbi seems to be a source where reputation is important, and Dr. Fokas does seem to have a measurable amount of respect from his peers from the sources I've found. Perhaps this is legitimate and, from the book I read about the Riemann Hypothesis, would have far-reaching and influencial consequences.
9) Message boards : General discussion : Favourite Prime Number. (Message 118651)
Posted 284 days ago by Profile GellyProject donor
e.g.123456789×2^n


123456789*2^1 - 1 is prime :P

Or k×2^[pandigit]?


I would imagine a number of this size would be difficult to check, since it would have at a minimum 37 million digits (123456789 * log10(2) +1 ~ 37,164,197), which is currently 10 million digits longer than the largest prime found. Perhaps in the future, but I wouldn't bank on making that sort of discovery anytime soon. I suppose there would "only" be 362 thousand numbers to check per k - 724 thousand if you wanted +1 and -1 - but it seems like a lot of work.

I think far more interesting would be a prime where the numbers come in order - something like 1 * 2^(345*678) - 9 or something. I haven't found any resources on them, and while I'd like to search for them, I'm unclear on the number theory of the divisors of the power of 2 and primality and that sort of thing.
10) Message boards : Number crunching : Badges III (Message 117157)
Posted 346 days ago by Profile GellyProject donor


First emerald badge.


Next 10 posts
[Return to PrimeGrid main page]
DNS Powered by DNSEXIT.COM
Copyright © 2005 - 2019 Rytis Slatkevičius (contact) and PrimeGrid community. Server load 2.67, 3.59, 3.62
Generated 25 Mar 2019 | 22:42:37 UTC