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-   -   NFS results and reservations (https://www.mersenneforum.org/showthread.php?t=19368)

swellman 2015-07-30 15:04

C194_125_56
 
I would like to reserve C194_125_56 for factoring by SNFS. It should be completed by late August. Thanks.

amphoria 2015-07-30 19:26

C235_129_67 done by SNFS
 
[CODE]Thu Jul 30 16:25:45 2015 p98 factor: 30169921501034289408136917535847838793604271415066218447171554202860869457677745981116635654152047
Thu Jul 30 16:25:45 2015 p138 factor: 303399860586615169466634373610202467323743851518054258764978255980263445570741517648971095594181127167514597551428191325193260202977520287
[/CODE]
22 days in total - 21 days sieving (on 24 cores) plus 30 hours for the linear algebra (8 cores).

swellman 2015-08-04 19:28

[QUOTE=swellman;404330]Reserving C160_146_39 for SNFS. Thanks.[/QUOTE]


[code]
prp58 = 9063604108316062220075043066528628299419260077420829014409
prp102 = 776034601924180965373008239813548569397534096471741836396970200963966057264028233065463115773386883619
[/code]

fivemack 2015-08-05 14:01

Reserving C257_135_82 for SNFS by nfs@home in the medium term

fivemack 2015-08-08 17:58

C171_121_105 done by SNFS
 
1 Attachment(s)
[code]
prp67 factor: 1128903536128732918501985832435229574782560535897941014046960480217
prp105 factor: 259416542974628031047059787820739439941788764719620335173598768583710405853540930984198061244167803927851
[/code]

Done by SNFS on 105*(105^20)^6+(11^35)^6; 33 million Xeon D1540 thread-seconds (almost exactly one month real-time) for the sieving, about 2.3 million Xeon D1540 thread-seconds (41 hours real-time) for the linear algebra.

I think that the records pages should include categories sorted by SNFS difficulty, otherwise there are a lot of numbers which are prohibitively difficult to do by GNFS but where there's no incentive to do them by SNFS.

fivemack 2015-08-10 21:54

C162_144_37 done by SNFS
 
1 Attachment(s)
[code]
Mon Aug 10 21:56:30 2015 prp60 factor: 343607985911000790619609654477966546489086734187299287315973
Mon Aug 10 21:56:30 2015 prp103 factor: 1041679660874105695300292687387132702179986202257247985218963606334576537866828902470710540504303525037
[/code]

10.37M thread-seconds (about 18 days) to sieve (144*(144^6)^6+(37^24)^6), then 720k thread-seconds for linear algebra on 7.23M matrix. All on i7/4770K.

fivemack 2015-08-15 07:36

Reserving C250_134_75 for personal SNFS

fivemack 2015-08-18 10:53

Reserving C175_131_96 for personal GNFS (should be done by mid-October)

fivemack 2015-08-31 05:27

C182_147_125 completed by nfs@home
 
P79 * P103; result and log at [url]http://www.mersenneforum.org/showpost.php?p=409243&postcount=317[/url]

swellman 2015-08-31 13:15

[QUOTE=swellman;406890]I would like to reserve C194_125_56 for factoring by SNFS. It should be completed by late August. Thanks.[/QUOTE]

[code]
prp50 = 17765370198677085619114815067141751992867612084843
prp78 = 186489609882333541288028087605853867478794498404032363725292817923261765548011
prp68 = 17285960711813681736589350768235743439753744332449452260265472838481
[/code]

fivemack 2015-09-04 15:54

Reserve C189_122_118


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