Gratuitous OPN factors - Page 19

debrouxl · 2012-06-16, 19:13

Thanks

wblipp · 2012-07-08, 00:58

Here's a sweet one! NFS@Home has finished 197^113-1. This was #36 on the MostWanted list, and is also a Brent Composite. ECM Prep work was done by yoyo@home.

Code:

197^113-1
P117: 654193042124933231729705819315964079079391693299068443398052654744392074475272108852801736929485096089372825217556787
P141: 146798481822028209687892643459179652118308925219381677435287030005797913691721474110569120527062218083794485017934524652073172367972456022763

jrk · 2012-08-10, 00:09

GNFS sieving by RSALS
Postprocessing by jrk

Code:

577^89-1
prp56 factor: 49295631504904073070096216816282669955307719136255631817
prp94 factor: 4308802005578606703821714427987260991801379590784300069258774536768919968639250281106839393629

jrk · 2012-08-12, 15:55

SNFS sieving by RSALS
Postprocessing by jrk

Code:

4873051^31-1
prp56 factor: 48119378019502750760724612704471032147324636591451363641
prp60 factor: 519462257165232800885052000166910044247275405938465294043901
prp86 factor: 17224823642474512305964705161924455416968067258276145408690942039175421034001438771641

debrouxl · 2012-08-12, 16:39

Thanks

This morning, I seem to have typed "31000000" instead of "21000000" when queuing 44371_43_minus1 (28-bit LPs). The latter would have provided some oversieving, the former is going to produce large oversieving, probably over 50M raw relations. You might want to save the dataset for exercising the filtering code and playing with higher target densities than usual for a task of this size ^^

jrk · 2012-08-16, 07:07

SNFS sieving by RSALS
Postprocessing by jrk

Code:

44371^43-1
prp71 factor: 47812678760189581349878685545013719738831351916216583222119406666513053
prp123 factor: 182216502687243221702917343811320172481188910515943939113452316347971130774402778682770251580796421885633073450550808557237

Jeff Gilchrist · 2012-08-19, 11:18

I think I posted the original in the wrong thread, but factors for 677_91_minus1 are available here with log:
http://www.mersenneforum.org/showpos...&postcount=508

pinhodecarlos · 2012-09-03, 18:47

SNFS sieving by NFS@Home
Postprocessing by Carlos Pinho

Nice split!

Code:

prp104 factor: 18344715996075965932129024809458502930590215696581457295863190169248929970537258248238193556864249413121
prp104 factor: 28373516234480422185006116264076049875756547418315623293236155608262057536670587771901480634249274246871

LaurV · 2012-09-04, 03:34

Quote:

Originally Posted by pinhodecarlos

Nice split!

Wow! Wonderful! Congrats!

pinhodecarlos · 2012-09-10, 14:19

SNFS sieving by NFS@Home
Postprocessing by Carlos Pinho

Code:

1583^71-1
prp88 factor: 1636593409189488379772818401638939729963566399189945302300479482846392701082290749706563
prp137 factor: 56233831883131716478896840379651264442696643524365615058441074120751674946123043467445594763768418176995925089960609165077543971511163451

wblipp · 2012-09-15, 19:51

Pascal has asked for help removing 10 deeply nested roadblocks. The roadblocks are SNFS ready. They range from 157 to 198 digits. These are too small for RSALS/NFS@Home, but they make interesting individual factoring projects. To reserve, post in this thread and I will update this message. C157 added Sept 25.

Status: All 11 are factored

The Composites:

Code:

(5281^43-1)/(5281-1) C157         Dubslow factored
(5011^47-1)/(5011-1) C171         Dubslow factored
(6143^47-1)/(6143-1) C175         Dubslow factored
(2917^53-1)/(2917-1) C181         Mathew  factored
(2957^53-1)/(2957-1) C181         Dubslow   factored
(3323^53-1)/(3323-1) C184         RichD     factored
(1487539^31-1)/(1487539-1) C186   jcrombie  factored
(1583653^31-1)/(1583653-1) C186   jcrombie  factored
(5087^53-1)/(5087-1) C193         chris2be8 factored
(6269^53-1)/(6269-1) C198         chris2be8 fatored

(2403293005054398937076590802836226619421^5-1)/(5*2403293005054398937076590802836226619420) C157 Dubslow factored

FYI, the nested roadblocks that these factorizations will clear are

Code:

 19^238 / 7^4 2801^82 / 97^1 / 61^2 13^2 3^2 / 653^2 / 2819^2 / 2917^52
 19^238 / 7^4 2801^82 / 97^1 / 61^2 13^2 3^2 / 653^2 / 2819^2 / 2957^52
 19^238 / 7^4 2801^82 / 97^1 / 61^2 13^2 3^2 / 653^2 / 2819^2 / 3323^52
 19^238 / 7^4 2801^82 / 97^1 / 61^2 13^2 3^2 / 653^2 / 2819^2 / 3329^2 / 1583653^30
 19^238 / 7^4 2801^82 / 97^1 / 61^2 13^2 3^2 / 653^2 / 2819^2 / 4397^2 / 1487539^30
 19^238 / 7^4 2801^82 / 97^1 / 61^2 13^2 3^2 / 653^2 / 2819^2 / 5011^46
 19^238 / 7^4 2801^82 / 97^1 / 61^2 13^2 3^2 / 653^2 / 2819^2 / 5087^52
 19^238 / 7^4 2801^82 / 97^1 / 61^2 13^2 3^2 / 653^2 / 2819^2 / 5281^42
 19^238 / 7^4 2801^82 / 97^1 / 61^2 13^2 3^2 / 653^2 / 2819^2 / 6143^46
 19^238 / 7^4 2801^82 / 97^1 / 61^2 13^2 3^2 / 653^2 / 2819^2 / 6269^52
 19^256 / 7^4 2801^82 / 97^1 / 61^2 13^2 3^2 / 653^2 / 2819^2 / 5011^46
 19^256 / 7^4 2801^82 / 97^1 / 61^2 13^2 3^2 / 653^2 / 2819^2 / 5281^42

3^4 11^18 6115909044841454629^16 / 5^1 / 1913^12 2403293005054398937076590802836226619421^4

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2012-06-16, 19:13	#199
debrouxl Sep 2009 977 Posts	Thanks

2012-08-12, 16:39	#203
debrouxl Sep 2009 977 Posts	Thanks This morning, I seem to have typed "31000000" instead of "21000000" when queuing 44371_43_minus1 (28-bit LPs). The latter would have provided some oversieving, the former is going to produce large oversieving, probably over 50M raw relations. You might want to save the dataset for exercising the filtering code and playing with higher target densities than usual for a task of this size ^^

2012-08-19, 11:18	#205
Jeff Gilchrist Jun 2003 Ottawa, Canada 3×17×23 Posts	I think I posted the original in the wrong thread, but factors for 677_91_minus1 are available here with log: http://www.mersenneforum.org/showpos...&postcount=508