Thanks Sean. In fact, for this particular number, this is far more than sufficient, given that the five XYYXF numbers in my local temporary cluster have reached t50 this morning :smile:

C202_127_58 needs another t50, and C222_124_67 needs one or two additional t50.

Ok Lionel - I'll terminate the current job and focus on C202_127_58 for a straight t50.


ETA: And Lionel, many thanks for the ECM!

This [URL="http://factordb.com/index.php?id=1100000000189243361"]C160 [/URL]needs a polynomial for GNFS. Yoyo@home has done ECM to 1/3 it's size.

It comes from [URL="http://factordb.com/index.php?id=1100000000438761382"]P175+1[/URL]
[URL="http://factordb.com/index.php?id=1100000000127891423"]P175[/URL] is [URL="http://factordb.com/index.php?id=1100000000438475651"](P97^3-1)/((P97-1)*P19)[/URL]
[URL="http://factordb.com/index.php?id=1100000000127462797"]P97[/URL] is [URL="http://factordb.com/index.php?id=1100000000438415410"]((542484773057617547^7-1)/((542484773057617546)*P10)
[/URL]

[QUOTE=wblipp;411688]This [URL="http://factordb.com/index.php?id=1100000000189243361"]C160 [/URL]needs a polynomial for GNFS. Yoyo@home has done ECM to 1/3 it's size.[/QUOTE]

After several hours on a GPU I found the following.

[CODE]N: 3812166333867579781353816629180985760415436178596802484452001460432333701508427916306470232545792634040928058352668097461366910240263380172626223232136762389451
# expecting poly E from 1.33e-12 to > 1.53e-12
R0: -5001257802116202686044800377236
R1: 210219715943077
A0: -210028030657066273951094724564084949185
A1: 432960993971364750005836666130868
A2: 30180027807515972762307433
A3: -82196454344090082040
A4: -3637853861588
A5: 1218360
# skew 4088011.42, size 1.413e-15, alpha -7.199, combined = 1.389e-12 rroots = 5[/CODE]

This [URL="http://factordb.com/index.php?id=1100000000438704554"]C160[/URL] needs a polynomial for GNFS. Yoyo@home has done ECM to 1/3 it's size.

It comes from [URL="http://factordb.com/index.php?id=1100000000438761367"]P209+1[/URL]
[URL="http://factordb.com/index.php?id=1100000000127507105"]P209[/URL] is [URL="http://factordb.com/index.php?id=1100000000438398311"](53738676221^23-1)/(53738676221)[/URL]/C29

[QUOTE=wblipp;411798]This [URL="http://factordb.com/index.php?id=1100000000438704554"]C160[/URL] needs a polynomial for GNFS. Yoyo@home has done ECM to 1/3 it's size.[/QUOTE]

After several hours on a GPU I found the following.
[CODE]N: 2021390848835379314520403057964735050683035816809274117990853120530192798856578377234517462883318080693534210071816730798545661105890584423725692113685060273453
# expecting poly E from 1.38e-12 to > 1.59e-12
R0: -3651880514702326596076575114596
R1: 682572253861399
A0: -12798419777512061378394749357838262445
A1: -5454351100290736545872317606238
A2: 31702960650674378858875363
A3: -3269618839361176398
A4: -20814083769282
A5: 3112200
# skew 1580554.22, size 1.610e-15, alpha -6.709, combined = 1.509e-12 rroots = 3[/CODE]

[QUOTE=debrouxl;411632]

C202_127_58 needs another t50, and C222_124_67 needs one or two additional t50.[/QUOTE]

C202_127_58 withstood another 7600+ curves @B1=43M. I believe ECM is complete for this number.

Currently running ECM on C222_124_67. Aiming for 6500 curves @B1=110M. Let me know if this will be enough pre-processing.

Yup, Sean, that shall be enough. Thanks :smile:

C222_124_67 has survived 7000+ curves @B1=110M with no factors found.

Two more suggestions for the 14e queue:

C200_146_37
C180_144_43

Both were ECM'd (by me) to the t50 level + 6000 curves @B1=110M. Let me know if they need more.

Thanks for considering them.

I've just pre-processed both, and they probably don't need more ECM. Thanks :smile: