mersenneforum.org

mersenneforum.org (https://www.mersenneforum.org/index.php)
-   Aliquot Sequences (https://www.mersenneforum.org/forumdisplay.php?f=90)
-   -   Reserved for MF - Sequence 3408 (https://www.mersenneforum.org/showthread.php?t=18421)

fivemack 2016-02-11 17:15

Queued at [url]http://escatter11.fullerton.edu/nfs/crunching.php[/url]

swellman 2016-03-07 22:02

C167_3408_1608
 
[url=http://www.mersenneforum.org/showpost.php?p=428324&postcount=694]Results posted[/url]

RichD 2016-03-10 17:20

C147 @ i1609
 
t40 & -pm1 9e9 - no factor

Continuing.

RichD 2016-03-13 21:07

C141 @ i1614
 
2 * 3^2 * 5 * 7 * ... * C141

I advanced a few steps but I need to get back to other projects.

Any help is welcome.

LaurV 2016-04-26 06:06

Hey, someone cracked the C182 from i1615, there is now an easy C120 waiting at i1616
Congrats!

unconnected 2016-04-26 08:11

It's me. C120 was also done :smile:

swellman 2016-04-29 21:52

Sequence now at i1620 with a C175. I took it up to a trivial t35 but hit nothing. Sorry if I was poaching - didn't see any notices. But I've abandoned the sequence now. Here's hoping further ECM can crack it.

LaurV 2016-05-06 07:21

[QUOTE=RichD;433181]Aliquot sequence 3408 is also assigned to the forum though not [URL="http://www.mersenneforum.org/showthread.php?t=18421&page=23"]much activity[/URL] has been done lately. It currently stands with a [URL="http://www.factordb.com/sequences.php?se=1&aq=3408&action=range&fr=1620&to=1620"]C175[/URL].
Hint, hint.[/QUOTE]
Hehe, one three is gone (actually... two threes are gone!), with a bit of luck we get rid of the last three too, and there it was a dead sequence...

unconnected 2016-05-06 11:45

I did t45 on the C175 and ~300 curves @43e6. I've stopped now.

unconnected 2016-05-11 14:41

Now C157 @i1628 and it is ready for GNFS.

RichD 2016-05-12 04:45

C157 @ i1628
 
Two to choose from.
[CODE]N: 1107539996194348607758987938149998439013200145998852929251249938679777840767363942489403268905868353799049234977734483837810312019588231329948926384387678623
# expecting poly E from 2.18e-12 to > 2.51e-12
R0: -1609319999339834703990591259529
R1: 2549538936276181
A0: 779820356075790076493881438513948920
A1: 10539848872370286710492549619340
A2: -21098243756839030672787026
A3: -15960416359995756765
A4: 2388677893794
A5: 102600
# skew 2804357.24, size 3.460e-15, alpha -6.747, combined = 2.333e-12 rroots = 5

N: 1107539996194348607758987938149998439013200145998852929251249938679777840767363942489403268905868353799049234977734483837810312019588231329948926384387678623
# expecting poly E from 2.18e-12 to > 2.51e-12
R0: -831609265226649019894593467224
R1: 697467876707489
A0: 11214674758834255568502622868971842975
A1: 10156257300307417199888877689380
A2: -45856196009118127755771581
A3: -5512568915297278574
A4: 25923868378092
A5: 2784600
# skew 1448164.02, size 3.257e-15, alpha -7.208, combined = 2.251e-12 rroots = 5[/CODE]


All times are UTC. The time now is 22:26.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.