Reserved for MF - Sequence 4788 - Page 104

jrk · 2011-03-24, 20:54

Quote:

Originally Posted by jrk

Also doing polynomial selection. I will post one a bit later.

Here's a poly:

Code:

n: 98731095533154773193560099230596665210106660338117773577932090184070780096096389465122743195845679229402483984784352098648619447487620592227488429
# norm 3.399907e-14 alpha -6.848952 e 8.766e-12 rroots 3
skew: 839467.91
c0:  123174712270102995688625425145221216
c1: -297287178383249662412077092516
c2: -1198014737798685651874042
c3:  225865332716632815
c4:  731607923610
c5:  720720
Y0: -10649696197340769418568233455
Y1:  31106972213343779
rlim: 24000000
alim: 24000000
lpbr: 28
lpba: 29
mfbr: 56
mfba: 58
rlambda: 2.5
alambda: 2.5

Sieve with 14e on -a side from Q=10M to 26M

jrk · 2011-03-24, 20:58

Quote:

Originally Posted by jrk

Sieve with 14e on -a side from Q=10M to 26M

If someone else wants to sieve, I'll volunteer to do postprocessing.

This would be another good task for RSALS!

FactorEyes · 2011-03-25, 03:33

Don't go there. After 2400@3e6, 2400@11e6, and around 2000@43e6, we have a p49 factor:

Code:

4526691146522582849262803247946736248296489024107

schickel · 2011-03-25, 03:43

Quote:

Originally Posted by FactorEyes

Don't go there. After 2400@3e6, 2400@11e6, and around 2000@43e6, we have a p49 factor:

Code:

4526691146522582849262803247946736248296489024107

Nice one!

FactorEyes · 2011-03-25, 05:10

Current composite is the C154 at iteration 2639.

jrk · 2011-03-25, 06:11

Code:

Using B1=80000000, B2=970297861270, polynomial Dickson(30), sigma=17459467728986425239
Step 1 took 262425ms
Step 2 took 128451ms
********** Factor found in step 2: 599792105155937515235840077089871
Found probable prime factor of 33 digits: 599792105155937515235840077089871
Composite cofactor 8902960293377115401027035069732585358623813024777744004351770960485449412747864502456882162213468482749040423661149005117 has 121 digits

GNFS'ing the cofactor now...

jrk · 2011-03-25, 19:13

Quote:

Originally Posted by jrk

GNFS'ing the cofactor now...

111161303612150687055927860992109312122233326341

jrk · 2011-03-25, 20:00

Code:

2639 .   2149411071955720860657336166890905655965824483220064338549598355132035428476407603119480214337905387962490548891054067056757890816363264513247313673869429774079145097281497488 = 2^4 * 7^2 * 36313 * 1586371 * 8912537 * 599792105155937515235840077089871 * 111161303612150687055927860992109312122233326341 * 80090463174488727809679157647738514605828822621791933688597706610570360537
2640 .   2695125631380877120688075316133060454693089119027491140439864162640385444672996877811472864516874780653131908475144601204396797271006125221524885841477163968713595352514710128 = 2^4 * 7^2 * 13^2 * 37 * 23012406055723349992959602849909 * 135829026705324869859041721257513 * 175881396656573732523601134643388090865029684615022498425259778874068454506921441755121344108778897055567
2641 .   4060191761776564175177059510457437381560526099279974065526141757987967817908480035460777708242145782931986876700367614029075549124933548119439790009907188914074930979540271632 = 2^4 * 253761985111035260948566219403589836347532881204998379095383859874247988619280002216298606765134111433249179793772975876817221820308346757464986875619199307129683186221266977
2642 .   3806429776665528914228493291053847545212993218074975686430757898113719829289200033244479101477011671498737696906594638152258327304625201361974803134287989606945247793319004686 = 2 * 9001 * 5424608533 * 19595267390311 * 221223557335948879375904953 * c121

Wonder how low it will go?

(I'll let someone else handle the c121...)

Batalov · 2011-03-25, 20:14

Congratulations!

firejuggler · 2011-03-25, 20:26

is it a record? if we manage to 'terminate' 4788 i guess it will be a good news.

schickel · 2011-03-25, 20:27

Quote:

Originally Posted by jrk

2642 . c175 = 2 * 9001 * 5424608533 * 19595267390311 * 221223557335948879375904953 * c121

Wonder how low it will go?

(I'll let someone else handle the c121...)

Awesome work, everyone!

I wonder how many PARTYs I can stuff in here?

2011-03-25, 03:33	#1136
FactorEyes Oct 2006 vomit_frame_pointer 168₁₆ Posts	Hold on a minute! Don't go there. After 2400@3e6, 2400@11e6, and around 2000@43e6, we have a p49 factor: Code: 4526691146522582849262803247946736248296489024107

2011-03-25, 05:10	#1138
FactorEyes Oct 2006 vomit_frame_pointer 2³·3²·5 Posts	4788;2639 Current composite is the C154 at iteration 2639.

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