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-   Aliquot Sequences (https://www.mersenneforum.org/forumdisplay.php?f=90)
-   -   Reserved for MF - Sequence 4788 (https://www.mersenneforum.org/showthread.php?t=11615)

Ralf Recker 2012-01-03 07:03

[QUOTE=akruppa;284548]About 4500@11m. Any volunteers for NFS?[/QUOTE]
Yes :smile:

schickel 2012-01-03 07:05

[QUOTE=akruppa;284520]Found a p41 and we lost the 2^2.[/QUOTE]Shhhh...don't make too much noise or the other 2 will find us again!

[QUOTE=Batalov;284521]Alex broke it, Alex fixed it! Looks like a pattern. :rolleyes:[/QUOTE]Looks like if you lose the downdriver, you have to run the sequence until you find it again....:rofl:

akruppa 2012-01-06 16:48

[QUOTE=Ralf Recker;284565]Yes :smile:[/QUOTE]

Any estimate on the completion time?

Ralf Recker 2012-01-06 19:02

[QUOTE=akruppa;285092]Any estimate on the completion time?[/QUOTE]
The factorization should be complete in a few hours.

[CODE]Info:Replaying merge history...
Info:Nrows: 2412653; Ncols: 2412493; Weight: 325141724.
Info:--------------------------------------------------------------------------
Info:Linear algebra
Info:--------------------------------------------------------------------------
Info:Calling Block-Wiedemann...
[/CODE]

Ralf Recker 2012-01-07 01:36

GNFS done, P-1 done
 
[CODE]Info:Preparing 23 dependency files
Info:Testing dependency number 0...
Info:Factorization was successful!
Info:282513231304648878202268691132529834582756908313 [prime]
Info:195378052051142638554713151283071968880687961740908823175466158468827553276169042042819791 [prime]
Info:Doing gcds with previously known composite factors
Info:non-trivial factor: 282513231304648878202268691132529834582756908313 [prime]
Info:non-trivial factor: 195378052051142638554713151283071968880687961740908823175466158468827553276169042042819791 [prime]
Info:Now: 2 prime factors, 0 composite factors
Info:Factorization complete
[/CODE]Update (i2840):

[CODE]ecm -pm1 1e9 < 4788-2840-c131
GMP-ECM 6.4 [configured with GMP 5.0.90, --enable-asm-redc] [P-1]
Input number is 24340857327964466671448347911010690599341977754432193301612615831404400353846724664314443468263024608145936303377184861751941023301 (131 digits)
Using B1=1000000000, B2=211252922128080, polynomial x^1, x0=2892386330
Step 1 took 136232ms
Step 2 took 111035ms
********** Factor found in step 2: 22320321079191410444006842537460802229
Found probable prime factor of 38 digits: 22320321079191410444006842537460802229
Probable prime cofactor 1090524515377905728815681621083347896479897110161902243550926350895476187350655021464603295569 has 94 digits
[/CODE]

science_man_88 2012-01-07 02:48

[QUOTE]Unchecked 2845 155 (show)[/QUOTE]

wow so it's went 5 lines in 1 hour ?

Ralf Recker 2012-01-07 03:42

[QUOTE=science_man_88;285175]wow so it's went 5 lines in 1 hour ?[/QUOTE]
Yes.

1000@1e6 on c144.

Mini-Geek 2012-01-07 04:10

[CODE]i2843 = 2 · 1997113451...3<155>
i2844 = 2^2 · 2275681 · 436065311457107<15> · 273382045978973731935568292259751669<36> · 1840389861...3<98>[/CODE]:yucky:

schickel 2012-01-07 05:51

[QUOTE=Mini-Geek;285185][CODE]i2843 = 2 · 1997113451...3<155>
i2844 = 2^2 · 2275681 · 436065311457107<15> · 273382045978973731935568292259751669<36> · 1840389861...3<98>[/CODE]:yucky:[/QUOTE]OK, who did it? We'll have to get them to run it until they get it back.....

Ralf Recker 2012-01-07 08:48

[QUOTE=schickel;285206]OK, who did it? We'll have to get them to run it until they get it back.....[/QUOTE]

:whistle:

[QUOTE=Ralf Recker;285182]Yes.

1000@1e6 on c144.[/QUOTE]
+2500@11e6

schickel 2012-01-07 09:55

[QUOTE=Ralf Recker;285230]+2500@11e6[/QUOTE]I'll start some @ 43M.


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