Post Lots and Lots of Top-5000 Primes Here - Page 177

storm5510 · 2020-02-20, 14:27

Quote:

Originally Posted by Cruelty

The most up-to-date reservations and statuses are available on mersenneforum.org, and other lists like rieselprime.de or 15k.org are outdated.

There needs to be a single location for everything. Having it in multiple places makes it more difficult to see what who is running. k = 25 being unassigned in the database makes it "fair-game" for anyone to take it over. If this happened, then you would be locked out. All they would have to do is to start sieving and testing just above the last updated n. 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:

Originally Posted by VBCurtis

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

Very well then. A simple search would work for anyone curious about starting a k 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:

Originally Posted by diep

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.

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

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

rudy235 · 2020-03-03, 09:53

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

6962 · 31^2863120 - 1

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

https://primes.utm.edu/primes/page.php?id=130702

paulunderwood · 2020-03-03, 10:27

Quote:

Originally Posted by rudy235

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

6962 · 31^2863120 - 1

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

https://primes.utm.edu/primes/page.php?id=130702

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:

Originally Posted by paulunderwood

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

You are totally right!

It might be posted somewhere else? Any suggestions?

pinhodecarlos · 2020-03-03, 21:20

Quote:

Originally Posted by rudy235

You are totally right!

It might be posted somewhere else? Any suggestions?

https://www.mersenneforum.org/showth...t=6374&page=18

kar_bon · 2020-03-11, 11:33

Quote:

Originally Posted by Cruelty

Solid 11 years

This is quite "heavy" k.

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 k=25 was in 2006!

matzetoni · 2020-06-17, 20:01

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

3329 · 2^3388472 - 1

is prime! (1,020,036 digits)

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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2020-02-20, 16:07	#1938
VBCurtis "Curtis" Feb 2005 Riverside, CA 17×337 Posts	There is a location, and it's this forum. Other locations are for convenience. If you find them inconvenient, don't use them.

2020-03-03, 09:53	#1941
rudy235 Jun 2015 Vallejo, CA/. 2203₈ Posts	This one has not been yet verified but it looks genuine. 6962 · 31^2863120 - 1 4269952 Digits. Largest of the year. Will rank 20 if verified. https://primes.utm.edu/primes/page.php?id=130702

2020-06-17, 20:01	#1946
matzetoni Feb 2019 97 Posts	discovered my first mega prime with help of the PG sieve file 3329 · 2^3388472 - 1 is prime! (1,020,036 digits) Really lucky there, I began testing at exponent 3,330,000 about a month ago.

2020-06-18, 06:43	#1947
kar_bon Mar 2006 Germany 2³×379 Posts	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.