[QUOTE=Max]What you'll want to do is create a subdirectory off the GGNFS directory for this particular factorization; place your .n file in there (formatted properly--if you need help with this see [url]http://gilchrist.ca/jeff/factoring/n...ers_guide.html[/url]). Then open a command prompt to the subdirectory and run:

../factmsieve.py filename.n[/QUOTE]

Okay; Here is my GGNFS directory;

...\Downloads\Factoring\ggnfs-svn360-win64-core2

So, this would be the path for the subdirectory:

...\Downloads\Factoring\ggnfs-svn360-win64-core2\tobefactored\example.n?

[QUOTE=3.14159;237140]Okay; Here is my GGNFS directory;

...\Downloads\Factoring\ggnfs-svn360-win64-core2

So, this would be the path for the subdirectory:

...\Downloads\Factoring\ggnfs-svn360-win64-core2\tobefactored\example.n?[/QUOTE]
Correct.

[QUOTE=mdettweiler;237141]Correct.[/QUOTE]

Well, I tried that and got no luck;

I also noted something interesting:

The pack has one of its files missing. Luckily, I forgot I had a spare copy, which I got around July-August, apparently. I will see how that works out.

.. The only problem is, that annoying problem of the correct path.. There must have someone other than I who ran away from this because it's impossible to set up..

[QUOTE=3.14159;237147]Well, I tried that and got no luck;

I also noted something interesting:

The pack has one of its files missing. Luckily, I forgot I had a spare copy, which I got around July-August, apparently. I will see how that works out.

.. The only problem is, that annoying problem of the correct path.. There must have someone other than I who ran away from this because it's impossible to set up..[/QUOTE]
Hmm...did your copy of GGNFS come with an msieve.exe binary? Mine did (albeit a very old copy) but I got it a while back. If you don't have msieve.exe in your GGNFS directory, grab the latest version from [URL]http://sourceforge.net/projects/msieve/[/URL].

If that doesn't work, try replacing the "../"'s with absolute paths. That is, with "...\Downloads\Factoring\ggnfs-svn360-win64-core2" (replacing with whatever full path is in its place).

Y'know, I've always had the idea that one day, I might be able to have a somewhat impressive semiprime integer split into its factors, like this;

[code]34202459310305167332073477050434588029922904302593504279353572001153771881481122935589269582256218330011913588589287285938611761601312404711541389297229774861463835999831 =

4474901351001318687510657405661030821171754716612970370265520870318598719901177600069 * 7643176156866991540331200941525581679369244062690306474322557206918623812221160197099[/code]

[QUOTE=CRGreathouse;237010]Pfft, here's 100.

Oops, the forum won't let me post that many characters. OK, here's the amount I can fit into a post.

[code]3828341080244400637832496477959805704164073468183074462634180957833651864984723682138669035433026500 = 2 * 2 * 3 * 5 * 5 * 5 * 7 * 19 * 19 * 23 * 37 * 53 * 241 * 1181 * 5649913 * 36081377 * 8581181173 * 47840420649221 * 56402348128571 * p32
1588660322983396302885796245830814329302488843364165698215578492464397730424401789229489704601075756 = 2 * 2 * 3 * 7 * 13 * 23 * 47 * 61 * 181 * 15031 * 526483 * 927323 * 1148527 * 406979061818023 * 81538217474440208479553 * p30
1021031048497837374483531447808891337935989532331588576367878602517111431033593224173329292881512173 = 31 * 367 * 30809 * 5668727 * 908392703 * 1028314699 * 2197843586849586383840467 * p42
7086422853097868451711345316509410180470376785600011857778722004533443743419826800885302936650498470 = 2 * 5 * 13 * 19 * 29 * 431 * 587 * 691 * 2767 * 942187 * 1893539 * 2597779 * 15624896897 * 1610494874908351 * 3845935534903586029 * p21
4318456126006444342857842557107114096633481415982568386769884274414806491142401044261345969736720694 = 2 * 3 * 7 * 11 * 13 * 23 * 31159 * 302053 * 30936197387 * 4176718791229 * 847849456387121 * 2254092997188947242409 * p26
1109587849660304353836201770893761411871650688020685001076825645933095103648972795052962839552595690 = 2 * 3 * 3 * 5 * 7 * 23 * 31 * 67 * 163 * 85632998041 * 17249535181483504313 * 394021370780626750477817951 * p33
2979941477970790621634249796909439789746784691205449811130412558873271515382744651517007594645175894 = 2 * 3 * 11 * 13 * 19 * 97 * 1637 * 706109 * 60265063 * 59542983281711851 * 6457175558840031600628637783 * p32
6420726987540740841706278258860741277295366130264261913963063511707914602848605467111390751821088121 = 3 * 7 * 97 * 1481121042485345479125151 * 176615229066307992468364472796139 * p41
9816138939953536743143344071912358383004405759221258712071041553368290365584815105024598168207976103 = 839 * 10399 * 4264780100791321147 * 8561427410274222444303852083 * p47
2268168812216914591854154823153328155076179646049376828112834528320073183563365268538263313054628020 = 2 * 2 * 3 * 3 * 5 * 7 * 7 * 23 * 31 * 31 * 37 * 61 * 73 * 479 * 523 * 1486553277901 * 2312246873086067716693912462289027 * p35
2175187002194884841675973456689521692815926892066030053856510088603896308976058660302016139102867286 = 2 * 17 * 43 * 199 * 317 * 17207 * 595611953 * 374487601672675901611 * 120397871923043244929719 * p35
1964666465908214969730131549122817558003317961763724416749317778247127635667033822930173507293655037 = 1409 * 2621779 * 572550962994499639130106764801815763499954743 * p45
2109835988366518432588338355806050669474506758795640108970282822027494388216935165502614463059840500 = 2 * 2 * 3 * 3 * 5 * 5 * 5 * 13 * 17 * 53 * 53 * 89 * 241 * 279464069 * 13390332799 * 13566564771765494922641095631 * p39
4170436258982883679101363076894140796229193134975892831177906516068402234097418053129515314672448236 = 2 * 2 * 17 * 2069 * 131381 * 147541 * 392669 * 1385569 * 8654839 * 1817213413 * 641105533842841 * 22777900103786411 * p26
1112745709173761896559835695316280609014296134651327666778801370828688600198148161143564180857076834 = 2 * 3 * 7 * 11 * 31 * 47 * 317 * 19381 * 182617 * 304849 * 589163046401 * 490279242759107592236447059 * p38
6754467728048555661382638518307179841909700849996023430663298769830785246937785624396484840143801820 = 2 * 2 * 5 * 13 * 19 * 23 * 29 * 83 * 97 * 2029 * 102139 * 175919 * 28920977 * 37222903 * 3325507556831 * 113026544095967 * p35
9290303292654677796208450313997479786862212010805900056412444714830815535310109739094853648011955880 = 2 * 2 * 2 * 3 * 5 * 19 * 19 * 53 * 139 * 149 * 2633 * 254557 * 7518315653802366207934294760412271 * p47
1519045907326352179272495192012691255110343871460740344723603485053123113376600850827082587042722632 = 2 * 2 * 2 * 3 * 3 * 3 * 7 * 7 * 7 * 7 * 11 * 13 * 19 * 23 * 73 * 953 * 8039 * 191531 * 650543 * 966923 * 2910837913 * 4712082339471169543 * p35
2297494279297747651318689357388091486187167887028748530651383542166405596399953892245633133215771067 = 3 * 19 * 1129 * 4909 * 45281 * 95483 * 350573551 * 185546423887211 * 5000505715976357 * p43
6916716710106028694497858360968629919200917839743569117166581989808297983518264029006195056926115135 = 3 * 5 * 7 * 313 * 599 * 701 * 887 * 117331 * 4657853 * 8510059 * 3519961031 * 34327729151 * 346541139438472730910749 * p25
4020646510893532589104720126916970485917983107805030705775412066914614392060823406100284080206300400 = 2 * 2 * 2 * 2 * 3 * 3 * 5 * 5 * 7 * 7 * 7 * 13 * 31 * 31 * 43 * 67 * 349 * 33623 * 102679 * 142159 * 229717 * 10307723 * 338788421 * 1427600611 * p39
7172656039606291939374148166929125456455438300989478240428912337825056979098115354643207581855835285 = 3 * 3 * 5 * 7 * 13 * 19 * 37 * 61 * 487 * 1121941560287 * 121409626878654282391474088573 * p48
2528919604826729658531053105058688132708635900874626524727189778747923659829992520183389956689288493 = 7 * 19 * 37 * 127 * 887 * 2347 * 149551999 * 140397312799 * 46097360176928611953517733 * p43
4780580308922684791934717889134818971136050278964890263719923034086360164542392367179511433499581230 = 2 * 3 * 5 * 11 * 47 * 107 * 199 * 3559 * 101399 * 226307 * 1130190559 * 12732542650017211591 * 130385357953530112759 * p29
1771581299718052268780183255753188184264364543991851960093639623289282075054030826702670725925580126 = 2 * 3 * 7 * 23 * 73 * 1621 * 440681 * 57252901 * 9424402487 * 555590203710791497 * 1664351435128005575192027 * p26
1826607301881605308867617623466131387321007525492908119055581832481636954149723135560049573051779689 = 3 * 7 * 8731 * 11971 * 86423 * 133697 * 6175693 * 3399940349409841 * 228101887805109423382486397 * p32
5012088009277640314402761559890041839759396057018545897258241994190447331558998944288170990344028751 = 2917 * 1757549 * 85744849549 * 77390355798296212981 * 117857840533006506831097561 * p34
1118682071008816168222725102230550120702126996309533995481998016819660387118847018742147190609638748 = 2 * 2 * 3 * 7 * 7 * 7 * 11 * 31 * 31 * 15107 * 66041 * 3629831 * 32303143 * 3644664791 * 3669739756759 * 9842283515159 * p34
3409719665791495912088557548714548870555928299445478456550560379913289306779291543643147189360470373 = 13 * 63079 * 1897177 * 6700089011507840929048948172217533113246337 * p45
1495013387078444830971209867702573522460009718985740283372631172961535442849970157536302235575256418 = 2 * 3 * 7 * 7 * 7 * 23 * 43 * 683 * 1069 * 11941 * 79943 * 174767 * 3055399 * 15229428191 * 97167102001 * 342494678174970979223 * p25
4525811937133892039004695583122389645196403182725701117694456147561445885523093800196418939098804213 = 3 * 7 * 127 * 181 * 971 * 1249 * 2417 * 938338889863 * 1435055134111 * 14576177493396886245107 * p39
2073311625512958451771092516352979522018668970964146344058841979417884026793493734398961719458991714 = 2 * 7 * 83 * 683 * 2927 * 2853337 * 14091887522033 * 229463148114318047593 * 119858213886351109516757 * p27
2898380564764331740650976346727898110985597681040329046593860520663948977367124731596264106185936093 = 3 * 3 * 101 * 151 * 271 * 1373 * 2153 * 17239 * 81239 * 2773871 * 7857481 * 899962939 * 82370557151 * 1455761853057791 * p28
3198477157946413712356473944979032360351567621787560078910437352396253167806937403734139451063110790 = 2 * 5 * 31 * 1543 * 31643 * 16930549 * 4315089697 * 147331735717257383607543819531715979 * p38
3122316024826623570999390780435061018523720250135414481535910292606995414401907413802207852764507150 = 2 * 5 * 5 * 13 * 53 * 9941 * 1095839 * 1436933 * 3566369 * 116278069 * 704550047 * 3739896647 * p46
1150279127692742245826975952975244459786635097720009368565532437170228458297750980752159689159559618 = 2 * 3 * 7 * 43 * 211 * 74843 * 487703 * 179282303 * 5191468757 * 279705792443006937347 * p45
3476994682280465721380107970080979643964773181753875578457560808630413498598886246958613562097879220 = 2 * 2 * 3 * 5 * 13 * 191 * 5912088495769122635780489 * 7782116779738216343902940458011407 * p36
2396930940518056525873755201487754594494952937746349126647824329949425055589025208870046787995076360 = 2 * 2 * 2 * 3 * 3 * 3 * 5 * 17 * 1361 * 13049 * 117243743 * 3537179857 * 13631427749 * 24865862748311267 * 83386179669921800083 * p24
5059444662280282391945087488109772319758228923707259715338382813207657103741168542070840844904146220 = 2 * 2 * 3 * 3 * 5 * 7 * 23 * 29 * 79 * 101 * 113 * 743 * 4831 * 2962207 * 4864957 * 15387939349 * 30166451450413001 * 22509974642730605057 * p23
9047865069205221785796363229531231728097227782231483365308238450563871586695628928251384364335276289 = 3 * 7 * 11 * 13 * 37 * 41 * 1327 * 1361 * 4243 * 29153 * 47513 * 9410983 * 55253941 * 219090281 * 1296987047 * 8269682713 * 84184045307 * p22
4818738698309238680979976982780739771434590565295500757251227197031479934194199257557409828463541162 = 2 * 31 * 79 * 379 * 25868233 * 64475011693 * 10929957278893 * 26357427070885165852945211371 * p34
7569920572151463447485708659596986502379885621035578545383014239308628711137659305904538890841093447 = 3 * 7 * 13 * 37 * 47 * 53 * 149 * 401 * 3457 * 34673 * 2494512199 * 13965069563 * 32420504751992087 * p44
7384425977124614373037190268769494322670515018022021984540726867123494391479847118318115045923964027 = 11 * 103 * 241 * 719 * 148709668309 * 51020820806647045557427500151889591 * p46
1460986172293537551768238256080060645982228305051951190204471703642679618463315789617586532311138454 = 2 * 3 * 31 * 47 * 673 * 1051 * 29478523 * 2049939233 * 120265998807826733 * 292426016421719911 * p39[/code][/QUOTE]

Could have posted those into a document.

A suitable number to leave YAFU working overnight..

54226171049950775045015304584853623265770119570639252888707467753514344661290463063582064327739908372829 (104 digits.)

That will set me a new record.

[QUOTE=3.14159;237741]That will set me a new record.[/QUOTE]

For my record of a SIQS-run with yafu see [url=http://www.mersenneforum.org/showpost.php?p=231694&postcount=724]here[/url].

[QUOTE=kar_bon;237749]For my record of a SIQS-run with yafu see [url=http://www.mersenneforum.org/showpost.php?p=231694&postcount=724]here[/url].[/QUOTE]

... I almost finished it, but it crashed instead of giving me factors.



[CODE]11/18/10 22:02:26 v1.20 , starting SIQS on c104: 54226171049950775045015304584853623265770119570639252888707467753514344661290463063582064327739908372829
11/18/10 22:02:26 v1.20 , random seeds: 2937123117, 3499815544
11/18/10 22:02:26 v1.20 , ==== sieve params ====
11/18/10 22:02:26 v1.20 , n = 106 digits, 350 bits
11/18/10 22:02:26 v1.20 , factor base: 140000 primes (max prime = 3952219)
11/18/10 22:02:26 v1.20 , single large prime cutoff: 592832850 (150 * pmax)
11/18/10 22:02:26 v1.20 , double large prime range from 45 to 53 bits
11/18/10 22:02:26 v1.20 , double large prime cutoff: 6184122292945686
11/18/10 22:02:26 v1.20 , allocating 10 large prime slices of factor base
11/18/10 22:02:26 v1.20 , buckets hold 2048 elements
11/18/10 22:02:26 v1.20 , sieve interval: 46 blocks of size 32768
11/18/10 22:02:26 v1.20 , polynomial A has ~ 14 factors
11/18/10 22:02:26 v1.20 , using multiplier of 29
11/18/10 22:02:26 v1.20 , using small prime variation correction of 22 bits
11/18/10 22:02:26 v1.20 , using SSE2 for trial division and x128 sieve scanning
11/18/10 22:02:26 v1.20 , trial factoring cutoff at 96 bits
11/18/10 22:02:26 v1.20 , ==== sieving started ( 4 threads) ====
11/19/10 04:29:16 v1.20 , trial division touched 1037885351 sieve locations out of 1691911094009856
11/19/10 04:29:16 v1.20 , 140700 relations found: 33259 full + 107441 from 2117572 partial, using 561228576 polys (1471 A polys)
11/19/10 04:29:16 v1.20 , on average, sieving found 0.00 rels/poly and 92.67 rels/sec
11/19/10 04:29:16 v1.20 , trial division touched 1037885351 sieve locations out of 1691911094009856
11/19/10 04:29:16 v1.20 , ==== post processing stage (msieve-1.38) ====[/CODE]
Then, an error message, "yafu has stopped working", or something to that effect.

I guess it doesn't work for anything larger than 100 digits..

[QUOTE=3.14159;237767]I guess it doesn't work for anything larger than 100 digits..[/QUOTE]

Definitely not. Don't guess, try again or read the manual.

Start again yafu, the found relations are stored so it will continue the test.

[QUOTE=kar_bon;237770]Definitely not. Don't guess, try again or read the manual.

Start again yafu, the found relations are stored so it will continue the test.[/QUOTE]

I guess I'll try once again..

.. No luck. It doesn't work for anything > 100 digits.