mersenneforum.org  

Go Back   mersenneforum.org > Prime Search Projects > Conjectures 'R Us

Reply
Thread Tools
Old 2017-10-17, 22:49   #881
pepi37
 
pepi37's Avatar
 
Dec 2011
After milion nines:)

1,451 Posts
Default

Primality testing 3745996192*3^439348-1 [N+1, Brillhart-Lehmer-Selfridge]
Running N+1 test using discriminant 13, base 1+sqrt(13)
3745996192*3^439348-1 is prime! (1182.5824s+0.3063s)


LLR

D:\PGEN>llr64 -t4 -d -q"3745996192*3^439348-1"
Base prime factor(s) taken : 3
Resuming N+1 prime test of 3745996192*3^439348-1 at bit 20599 [2.95%]
Using zero-padded AVX FFT length 72K, Pass1=384, Pass2=192, 4 threads, a = 3
3745996192*3^439348-1 may be prime. Starting Lucas sequence...
Using zero-padded AVX FFT length 72K, Pass1=384, Pass2=192, 4 threads, P = 11
3745996192*3^439348-1 may be prime, trying to compute gcd's
3745996192*3^439348-1 may be prime, but N divides U((N+1)/3), P = 11
Restarting Lucas sequence with P = 15
Using zero-padded AVX FFT length 72K, Pass1=384, Pass2=192, 4 threads, P = 15
3745996192*3^439348-1 may be prime, trying to compute gcd's
U((N+1)/3) is coprime to N!
3745996192*3^439348-1 is prime! (209632 decimal digits, P = 15) Time : 677.190 sec.

Maybe it is time to use newer LLR (PFGW) version, or check your CPU-s :)

Last fiddled with by pepi37 on 2017-10-17 at 23:03
pepi37 is online now   Reply With Quote
Old 2017-10-17, 22:57   #882
MisterBitcoin
 
MisterBitcoin's Avatar
 
"Nuri, the dragon :P"
Jul 2016
Good old Germany

32B16 Posts
Default

Running an Baillie-PSW Primality Test in order to check if pseodoprime or not. Might take a few hours.
MisterBitcoin is offline   Reply With Quote
Old 2017-10-17, 23:06   #883
pepi37
 
pepi37's Avatar
 
Dec 2011
After milion nines:)

1,451 Posts
Default

Quote:
Originally Posted by MisterBitcoin View Post
Running an Baillie-PSW Primality Test in order to check if pseodoprime or not. Might take a few hours.
LLR say it is prime, you are wasting time

3745996192*3^439348-1 is prime! (209632 decimal digits, P = 15) Time : 677.190 sec.
pepi37 is online now   Reply With Quote
Old 2017-10-18, 08:51   #884
MisterBitcoin
 
MisterBitcoin's Avatar
 
"Nuri, the dragon :P"
Jul 2016
Good old Germany

811 Posts
Default

Updated PFGW

Code:
Running N+1 test using discriminant 13, base 1+sqrt(13)
3745996192*3^439348-1 is prime! (6203.2616s+0.0181s)
MisterBitcoin is offline   Reply With Quote
Old 2017-10-18, 17:05   #885
MisterBitcoin
 
MisterBitcoin's Avatar
 
"Nuri, the dragon :P"
Jul 2016
Good old Germany

14538 Posts
Default

Quote:
Originally Posted by MisterBitcoin View Post
Running an Baillie-PSW Primality Test in order to check if pseodoprime or not. Might take a few hours.
Looks like I failed the syntax. Can someone help?
Programm can be found here.
Attached Thumbnails
Click image for larger version

Name:	2017-10-18 17_00_29-Overwolf Quick Launcher.png
Views:	66
Size:	26.7 KB
ID:	17025  
MisterBitcoin is offline   Reply With Quote
Old 2017-10-18, 17:52   #886
rebirther
 
rebirther's Avatar
 
Sep 2011
Germany

26×32×5 Posts
Default

Quote:
Originally Posted by MisterBitcoin View Post
Looks like I failed the syntax. Can someone help?
Programm can be found here.
I have checked with my CPU again and got the result from Pepi, so no pseudoprime or similar.
rebirther is offline   Reply With Quote
Old 2017-10-28, 09:42   #887
rebirther
 
rebirther's Avatar
 
Sep 2011
Germany

26×32×5 Posts
Default

R3 tested to n=550k (525-550k) (0-2.147G)

28 primes found, 884 remain in this range

Results emailed, Base released
rebirther is offline   Reply With Quote
Old 2017-10-29, 14:15   #888
rebirther
 
rebirther's Avatar
 
Sep 2011
Germany

26×32×5 Posts
Default

R3 tested to n=500k (350-500k) (2.147-4G)

284 primes found, 814 remain in this range

Results emailed, Base released
rebirther is offline   Reply With Quote
Old 2017-10-31, 16:08   #889
MisterBitcoin
 
MisterBitcoin's Avatar
 
"Nuri, the dragon :P"
Jul 2016
Good old Germany

811 Posts
Default

R3 range 63G-end reached N=250K.
There are 65k´s remain.
Attached is the first part of llr results, the second (way bigger) part was sended via Mail.
There is also an file attached with k´s remain on this range. I´m releasing this range.
Attached Files
File Type: zip R3_63G_01.zip (924.0 KB, 46 views)
File Type: txt R3_k63-end.txt (1.2 KB, 51 views)
MisterBitcoin is offline   Reply With Quote
Old 2017-11-01, 05:55   #890
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

32×13×89 Posts
Default

Quote:
Originally Posted by MisterBitcoin View Post
R3 range 63G-end reached N=250K.
There are 65k´s remain.
Attached is the first part of llr results, the second (way bigger) part was sended via Mail.
There is also an file attached with k´s remain on this range. I´m releasing this range.
In the future, please do the following for all bases:

1. Send me one file for each of the following:
Primes
Remaining
Results
(If files are > 1 GB, divide them up by k-value, preferrably k=1G chunks for base 3.)

2. Balance the k's remaining: That is take the remaining k's at the beginning of your range, subtract the unique primes found, and make sure that it matches the k's remaining at the end of your range.

For this range, the primes files and the number of k's remaining is incorrect. This took me a while to balance because I had to merge all of the files and there were several errors:

Primes missing from the primes files:
63005744278*3^178028-1
63014422508*3^105198-1

k's that should not be in remaining file:
63043444714*3^n-1 (63043444714*3^151276-1 is prime)
63057760112*3^n-1 (63057760112*3^237072-1 is prime)

There were 49 primes found for k>63G and n=100K-250K and only 63 k's remaining at n=250K.

I'm asking for some close inspections on the files before posting them on these large bases. Thanks.

Last fiddled with by gd_barnes on 2017-11-01 at 06:12
gd_barnes is offline   Reply With Quote
Old 2017-11-02, 20:55   #891
rebirther
 
rebirther's Avatar
 
Sep 2011
Germany

288010 Posts
Default

Reserving R3 to n=175k (150-175k) (6-10G) for BOINC
rebirther is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Bases 251-500 reservations/statuses/primes gd_barnes Conjectures 'R Us 2305 2021-08-04 15:09
Bases 33-100 reservations/statuses/primes Siemelink Conjectures 'R Us 1693 2021-08-01 08:40
Bases 101-250 reservations/statuses/primes gd_barnes Conjectures 'R Us 908 2021-08-01 07:48
Bases 6-32 reservations/statuses/primes gd_barnes Conjectures 'R Us 1397 2021-07-25 07:07
Sierp base 3 reservations/statuses/primes gd_barnes Conjectures 'R Us 388 2020-10-21 19:42

All times are UTC. The time now is 10:34.


Fri Aug 6 10:34:20 UTC 2021 up 14 days, 5:03, 1 user, load averages: 3.38, 3.60, 3.69

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.