Fast Breeding (guru management) - Page 24

debrouxl · 2015-09-30, 06:38

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

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

swellman · 2015-09-30, 10:55

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!

wblipp · 2015-10-01, 01:08

This C160 needs a polynomial for GNFS. Yoyo@home has done ECM to 1/3 it's size.

It comes from P175+1
P175 is (P97^3-1)/((P97-1)*P19)
P97 is ((542484773057617547^7-1)/((542484773057617546)*P10)

RichD · 2015-10-02, 00:49

Quote:

Originally Posted by wblipp

This C160 needs a polynomial for GNFS. Yoyo@home has done ECM to 1/3 it's size.

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

wblipp · 2015-10-02, 02:23

This C160 needs a polynomial for GNFS. Yoyo@home has done ECM to 1/3 it's size.

It comes from P209+1
P209 is (53738676221^23-1)/(53738676221)/C29

RichD · 2015-10-02, 17:32

Quote:

Originally Posted by wblipp

This C160 needs a polynomial for GNFS. Yoyo@home has done ECM to 1/3 it's size.

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

swellman · 2015-10-02, 20:58

Quote:

Originally Posted by debrouxl

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

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.

debrouxl · 2015-10-05, 13:04

Yup, Sean, that shall be enough. Thanks

swellman · 2015-10-08, 12:24

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

swellman · 2015-10-09, 15:57

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.

debrouxl · 2015-10-10, 07:56

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

2015-09-30, 10:55	#255
swellman Jun 2012 2²·773 Posts	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! Last fiddled with by swellman on 2015-09-30 at 11:28

2015-10-09, 15:57	#263
swellman Jun 2012 110000010100₂ Posts	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. Last fiddled with by swellman on 2015-10-09 at 15:58

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2015-09-30, 06:38	#254
debrouxl Sep 2009 1111010001₂ Posts	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 C202_127_58 needs another t50, and C222_124_67 needs one or two additional t50.

2015-10-01, 01:08	#256
wblipp "William" May 2003 New Haven 2·7·13² Posts	This C160 needs a polynomial for GNFS. Yoyo@home has done ECM to 1/3 it's size. It comes from P175+1 P175 is (P97^3-1)/((P97-1)P19) P97 is ((542484773057617547^7-1)/((542484773057617546)P10)

2015-10-02, 02:23	#258
wblipp "William" May 2003 New Haven 93E₁₆ Posts	This C160 needs a polynomial for GNFS. Yoyo@home has done ECM to 1/3 it's size. It comes from P209+1 P209 is (53738676221^23-1)/(53738676221)/C29

2015-10-05, 13:04	#261
debrouxl Sep 2009 977 Posts	Yup, Sean, that shall be enough. Thanks

2015-10-08, 12:24	#262
swellman Jun 2012 2²·773 Posts	C222_124_67 has survived 7000+ curves @B1=110M with no factors found.

2015-10-10, 07:56	#264
debrouxl Sep 2009 977 Posts	I've just pre-processed both, and they probably don't need more ECM. Thanks