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-   -   Reserved for MF - Sequence 4788 (https://www.mersenneforum.org/showthread.php?t=11615)

jrk 2011-03-24 20:54

[QUOTE=jrk;256538]Also doing polynomial selection. I will post one a bit later.[/QUOTE]

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
[/code]
Sieve with 14e on -a side from Q=10M to 26M

jrk 2011-03-24 20:58

[QUOTE=jrk;256545]Sieve with 14e on -a side from Q=10M to 26M[/QUOTE]
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

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

[CODE]4526691146522582849262803247946736248296489024107[/CODE]

schickel 2011-03-25 03:43

[QUOTE=FactorEyes;256569]Don't go there. After 2400@3e6, 2400@11e6, and around 2000@43e6, we have a p49 factor:

[CODE]4526691146522582849262803247946736248296489024107[/CODE][/QUOTE]Nice one!

:party:

FactorEyes 2011-03-25 05:10

4788;2639
 
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
[/code]
GNFS'ing the cofactor now...

jrk 2011-03-25 19:13

[QUOTE=jrk;256575]GNFS'ing the cofactor now...[/QUOTE]

111161303612150687055927860992109312122233326341

jrk 2011-03-25 20:00

Downdriver?!
 
[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
[/code]

Wonder how low it will go?

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

Batalov 2011-03-25 20:14

Congratulations! :grenade:

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=jrk;256630] 2642 . c175 = 2 * 9001 * 5424608533 * 19595267390311 * 221223557335948879375904953 * c121

Wonder how low it will go?

(I'll let someone else handle the c121...)[/QUOTE]Awesome work, everyone!

[SIZE="1"]I wonder how many PARTYs I can stuff in here?[/SIZE]

:party: :party: :party: :party: :party: :party:

:party: :party: :party: :party: :party: :party:


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