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-   -   POST LOTS AND LOTS OF PRIMES HERE (https://www.mersenneforum.org/showthread.php?t=13180)

storm5510 2020-02-20 14:27

[QUOTE=Cruelty;537961]The most up-to-date reservations and statuses are available on mersenneforum.org, and other lists like rieselprime.de or 15k.org are outdated.[/QUOTE]

There needs to be a single location for everything. Having it in multiple places makes it more difficult to see what who is running. [I]k[/I] = 25 being unassigned in the database makes it "fair-game" for anyone to take it over. If this happened, then you would be [U]locked out[/U]. All they would have to do is to start sieving and testing just above the last updated [I]n[/I]. The result would be a duplication of effort. You have spent 11 years on this? Grab it! Since it is already there, it would not be difficult to keep it current. I an not saying to stop posting here. It is simply too tedious to look through all these pages when a person can see it summarized there on a single page.

VBCurtis 2020-02-20 16:07

There is a location, and it's this forum. Other locations are for convenience. If you find them inconvenient, don't use them.

storm5510 2020-02-21 15:27

[QUOTE=VBCurtis;538007]There is a location, and it's this forum. Other locations are for convenience. If you find them inconvenient, don't use them.[/QUOTE]

Very well then. A simple search would work for anyone curious about starting a [I]k[/I] which may be taken. No relative results, then it is free-and-clear. I will not belabor this any further.

paulunderwood 2020-03-01 23:58

[QUOTE=diep;536869]If there is 1+ closeby we'll have it soon as well.

69 seems very unpredictable now because of the huge gap, yet odds are they group a little together.[/QUOTE]

Yep! Here is another, this one with 2,058,738 digits, 69*2^6838971-1

[url]https://primes.utm.edu/primes/page.php?id=130718[/url]

:party:

rudy235 2020-03-03 09:53

This one has not been yet verified but it looks genuine.

[SIZE="3"]6962 · 31[SUP]2863120[/SUP] - 1[/SIZE]

4269952 Digits. Largest of the year. Will rank 20 if verified.

[URL="https://primes.utm.edu/primes/page.php?id=130702"]https://primes.utm.edu/primes/page.php?id=130702[/URL]

paulunderwood 2020-03-03 10:27

[QUOTE=rudy235;538794]This one has not been yet verified but it looks genuine.

[SIZE="3"]6962 · 31[SUP]2863120[/SUP] - 1[/SIZE]

4269952 Digits. Largest of the year. Will rank 20 if verified.

[URL="https://primes.utm.edu/primes/page.php?id=130702"]https://primes.utm.edu/primes/page.php?id=130702[/URL][/QUOTE]

This is not strictly a Riesel Prime Search prime which have b=2 and k<300 (?). Nevertheless, it is a great achievement by CRUS.

rudy235 2020-03-03 21:16

[QUOTE=paulunderwood;538799]This is not strictly a Riesel Prime Search prime which have b=2 and k<300 (?). Nevertheless, it is a great achievement by CRUS.[/QUOTE]

You are totally right!:smile: It might be posted somewhere else? Any suggestions?

pinhodecarlos 2020-03-03 21:20

[QUOTE=rudy235;538830]You are totally right!:smile: It might be posted somewhere else? Any suggestions?[/QUOTE]

[url]https://www.mersenneforum.org/showthread.php?t=6374&page=18[/url]

kar_bon 2020-03-11 11:33

[QUOTE=Cruelty;537960]Solid 11 years :smile: This is quite "heavy" k.[/QUOTE]

It's quite more than 11 years now: I've included the primes found from the older primes thread with post links in the Wiki and your first found for [url='https://www.rieselprime.de/ziki/Riesel_prime_25']k=25[/url] was in 2006!

matzetoni 2020-06-17 20:01

discovered my first mega prime with help of the PG sieve file

[B]3329 · 2[SUP]3388472[/SUP] - 1[/B]

is [URL="https://primes.utm.edu/primes/page.php?id=130974"]prime[/URL]! (1,020,036 digits) :jvang:

Really lucky there, I began testing at exponent 3,330,000 about a month ago.

kar_bon 2020-06-18 06:43

You tested only k=3329 from n=3330000?
For a Nash weight that low you tested only 516 n-values to find such prime. Lucky hit.


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