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mklasson 2009-05-12 17:48

[QUOTE=Andi47;173318][URL="http://factorization.ath.cx/search.php?query=&se=1&aq=100436&action=last&fr=&to="]100436[/URL] line 1769, size 136, [COLOR="Red"]2^4*3^2*11*31[b][SIZE="4"]^2[/SIZE][/b][/COLOR]. Let's hope that the 31 now finally dissappears.

Edit: Cofactor is a c125 which seems to need GNFS.[/QUOTE]

:toot: they're not easy to get rid of!

mklasson 2009-05-12 18:55

Downdrivers today aren't what they used to be... :uncwilly:
[code]
4941 . 57467347387020953513418043737309604806966046225256789877147432035863266074798817054467686057046917524 = 2^2 * 3^2 * 1596315205195026486483834548258600133526834617368244163254095334329535168744411584846324612695747709
4942 . 87797336285726456756610900154223007343975903955253428978975243388124434280942637166547853698266124086 = 2 * 3 * 1783 * 3851 * 671471 * 535830919519157208672200886137986051519 * 5923115432655144579154794315804262699309479122893
4943 . 87941703453879424263754869757053331348360851084834728727660076088807200635190484585829296175887593674 = 2 * 3 * 3673 * 1489223 * 20850210208589489563867 * 6959251758114071552571763876466239 * 18466728934769993728935336508023877
4944 . 87989707080759633381810760895852589111232422338357678010847946375846842077737029238956277639646465846 = 2 * 3 * 301662612279355333 * 1080194309128272660731 * 45004635546244419284253780510616363973983682518683339938697167
4945 . 87989707080759633965338689904277622758185792219740943612374405380824874735389864233878927606172853962 = 2 * 3 * 13 * 97 * 4421 * 132565253 * 366596527281392591722924530651485377 * 54128621677587027673823785954221386536989157017707
4946 . 103523671967365012219008586333327801001220868535834109562796086259934037341745814727531607741967914806 = 2 * 3 * 16035696248761183 * 3494525929735364429 * 307901871793595730614236518870811343815367185780500716102535661043
4947 . 103523671967365025189910534580702332771975384772358312046384996959688216348674577989433805688938468554 = 2 * 3 * 136869206892217 * 126061557012465657556265925214067561201040699225050343322569022514205792189334979959727
4948 . 103523671967366537928594684168593007963077953583092724534775697563808087176944748458941720139180691894 = 2 * 3 * 5992033 * 2879481025537480015230075339721732951155808431603895943574178623621512297438525134372638917353
4949 . 103523706521138844378354866929497084623873367452793903781527020453951570635092317721243332610919604538 = 2 * 3 * 5765988097568764986476723831 * 2992366753953519413016813418502019122661698232762194464649923371926051033

[/code]

10metreh 2009-05-12 18:56

Another day, another downdriver lost
 
This downdriver run on 130396 only lasted 7 digits! :ouch1: No drivers yet.

mataje 2009-05-14 09:28

[URL="http://factorization.ath.cx/search.php?query=&se=1&aq=199152&action=last&fr=&to="]199152[/URL]: line 4638, size 140, 2^5, C122
[URL="http://factorization.ath.cx/search.php?query=&se=1&aq=113250&action=last&fr=&to="]113250[/URL]: line 846, size 130, 2*3, C128
[URL="http://factorization.ath.cx/search.php?query=&se=1&aq=153516&action=last&fr=&to="]153516[/URL]: line 1087, size 102, 2^2
Interesting is lines 845 and 846 of 113250:128 digits equal!. Is this a record?
[code]845. 1927906626364025044471921750582066536912915739000108960993514047065844457265557673339035184191424205632057229942757487930493673082
846. 1927906626364025044471921750582066536912915739000108960993514047065844457265557673339035184191424205632057229942757487930493673094 [/code]

Batalov 2009-05-14 09:56

[quote=mataje;173491][URL="http://factorization.ath.cx/search.php?query=&se=1&aq=113250&action=last&fr=&to="]113250[/URL]: line 846, size 130, 2*3, C128
Interesting is lines 845 and 846 of 113250:128 digits equal!. Is this a record?[/quote]
That's normal: for any N=6p,
3*4*(p+1)-2*3*p => N+12

The record is currently 6*M[sub]46[/sub]... :smile:


...o[SIZE=1]h wait, for the 46th known perfect number, all 25.95 million digits will be equal...[/SIZE]

mataje 2009-05-14 10:19

And about Aliquot numbers, do you know whats the record?. :beer:

Batalov 2009-05-14 10:28

[CODE]# cat *.elf | awk '$(NF-2)==3 && $(NF-4)==2 && length($3)>120 {print length($3), $0}'

Found 135-digits (133 equal):
2830 . 242723666495741754007877901195280765468045114690227656148868708495890955629444645483677860147835197252863241867118830404132833080537062 = 2 * 3 * 40453944415956959001312983532546794244674185781704609358144784749315159271574107580612976691305866208810540311186471734022138846756177
(in sequence 107310)
[/CODE]

mataje 2009-05-14 10:38

Thank you for your quick answer.!!

kar_bon 2009-05-14 12:07

139 digits equal from SEQ 276 index 1529:

[code]
903692024619381581457115404905697455152334798245785858795381687596459962025946820496213246009666249788485988137881155056947287375497124489638 = 2 * 3 * 150615337436563596909519234150949575858722466374297643132563614599409993670991136749368874334944374964747664689646859176157881229249520748273
[/code]

134 digits equal from SEQ 1578 index 7203:

[code]
2334023723289754676291730856871386836211962887830254643536154734191171350030365714895567469891666678556181491976345268422058246039054322 = 2 * 3 * 389003953881625779381955142811897806035327147971709107256025789031861891671727619149261244981944446426030248662724211403676374339842387
[/code]

KriZp 2009-05-15 10:02

182224 has seen little progress the last week, as the computer on which it ran died last weekend. Luckily I had the day before updated the DB, so not much work was lost. It was doing NFS that night. factMsieve.pl keeps crashing on my laptop for some reason, and I haven't been in the mood to run a completely manual GNFS. Much work in Real Life at the moment, but I will get it sorted and find a suitable host for aliqueit to run on one of these days.

Last line:
[code]1942 CF 134 [URL="http://factorization.ath.cx/search.php?id=35615556&detail=1"](Show)[/URL] [URL="http://factorization.ath.cx/search.php?id=35615556"][COLOR=#002099]4276601139...[/COLOR][/URL]<134> = [URL="http://factorization.ath.cx/search.php?id=16882"][COLOR=#000000]24[/COLOR][/URL] · [URL="http://factorization.ath.cx/search.php?id=2"][COLOR=#000000]7[/COLOR][/URL] · [URL="http://factorization.ath.cx/search.php?id=5"][COLOR=#000000]31[/COLOR][/URL] · [URL="http://factorization.ath.cx/search.php?id=71"][COLOR=#000000]223[/COLOR][/URL] · [URL="http://factorization.ath.cx/search.php?id=35615557"][COLOR=#002099]5523497575...[/COLOR][/URL]<128>[/code]

10metreh 2009-05-16 15:02

1 Attachment(s)
Check the database regularly for [URL="http://factorization.ath.cx/search.php?query=&se=1&aq=130396&action=last&fr=&to="]130396[/URL]. A few nice downdriver runs over the last few hours have added over 1000 lines and taken the sequence down to 23 digits (although it has risen again)!

:party:

This sequence has made 2^3*3 seem so easy to escape from - the first time (before the latest downdriver-fest) it disappeared after one line, the second time it lasted only eight lines!

Edit: I just acquired 2^3*3 again! :ouch1::lol:

Edit2: Guess what? I escaped it after another eight lines! :lol::lol:

Here's the latest graph:


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