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Old 2014-11-06, 00:55   #56
bdodson
 
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Jun 2005
lehigh.edu

210 Posts
Default p65 factorization of 10,341- C226

Quote:
Originally Posted by wreck View Post
10,281- is factored by Propper.
10, 281- c210 = p100 * p110
This number has been at the first hole position of 10- over two years.
7 Cunningham numbers factored by him in less than one month, it is so horrible.
Those were the good-old-days. Anyway, here's a new one; 10,341- C226 factors as
Code:
p65 = 77617683268614779848612867615549232510150162228416842360054700961
with a p161 (really!, not a composite that I misread, like the recent p74 cofactor).

Dodson/ECMNET, B1 = 400M one of 8 condor jobs running on public pc sites after
hours, routinely 2000 curves at once over-night ("lower memory" pool of pcs).

This one is a repunit; perhaps someone could let the repunit people know?
-Bruce Dodson

[to recall, that was :horrible = .c "awesome, awe-inspiring". any chance he'll
[= Ryan] be back over the semester break?]
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Old 2014-11-06, 12:44   #57
R.D. Silverman
 
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Nov 2003

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Quote:
Originally Posted by bdodson View Post
Those were the good-old-days. Anyway, here's a new one; 10,341- C226 factors as
Code:
p65 = 77617683268614779848612867615549232510150162228416842360054700961
with a p161 (really!, not a composite that I misread, like the recent p74 cofactor).

Dodson/ECMNET, B1 = 400M one of 8 condor jobs running on public pc sites after
hours, routinely 2000 curves at once over-night ("lower memory" pool of pcs).

This one is a repunit; perhaps someone could let the repunit people know?
-Bruce Dodson

[to recall, that was :horrible = .c "awesome, awe-inspiring". any chance he'll
[= Ryan] be back over the semester break?]
I don't know if he will be back. He has had some numbers reserved for quite some time
with no progress. Perhaps he should release them? (along with Texas State?)
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Old 2016-09-04, 12:01   #58
wreck
 
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"Bo Chen"
Oct 2005
Wuhan,China

25·5 Posts
Default 10,343- c238 factored

R343 is factored.
Postprocessing and report attached.
Attached Files
File Type: log R343.log (27.9 KB, 198 views)
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Old 2016-09-06, 11:40   #59
pinhodecarlos
 
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"Carlos Pinho"
Oct 2011
Milton Keynes, UK

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Quote:
Originally Posted by wreck View Post
R343 is factored.
Postprocessing and report attached.
Congratulations!!! Good team effort.
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Old 2018-05-16, 13:49   #60
rudy235
 
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Jun 2015
Vallejo, CA/.

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Is anyone trying to factor R409 ?
It has 8 small factors ranging from 4 to 39 digits and a c320
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Old 2018-11-18, 14:49   #61
kurtb
 
"Beschorner Kurt"
Jul 2016
Germany

17 Posts
Default 10^447-1 is factored

10^447-1: SNFS-diff. = 300; P87 * P156

Team: Bo Chen, Wenjie Fang, Alfred Eichhorn, Dinilo Nitsche, Kurt Beschorner


next number: Repunit R507, c200, GNFS; status: sieving


Kurt
Attached Files
File Type: log R447-msieve.log (8.3 KB, 518 views)
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Old 2020-05-31, 07:00   #62
rudy235
 
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Default 10^337-1 has new prime factor

6523 10, 337- c268 906533749251005245151122204670351312590267105760052002862150546121. c202 Wagstaff ECMNET
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Old 2020-05-31, 18:59   #63
rudy235
 
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This is one of the most wanted.
4. 10,323- C271
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Old 2020-06-01, 03:23   #64
R.D. Silverman
 
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Quote:
Originally Posted by rudy235 View Post
This is one of the most wanted.
4. 10,323- C271
Profound. Did you work that out all by yourself??

The tables are public and well known. Was there some purpose to your post?
This number has been well discussed. NFS@Home will get to it.
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Old 2020-06-01, 05:19   #65
rudy235
 
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Quote:
Originally Posted by R.D. Silverman View Post
Profound. Did you work that out all by yourself?? (Obviously not)

The tables are public and well known. (YES, true) Was there some purpose to your post? (There was, and it was not inciting you)
This number has been well discussed. NFS@Home will get to it. (Of course it will get to it)
RD Silverman (I was going to say Dr. Silverman but I do not know if you are or not)

Sarcasm is the lowest form of wit. (And you seem to propel yourself to that low end of the spectrum).
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Old 2020-06-03, 18:15   #66
sweety439
 
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Quote:
Originally Posted by rudy235 View Post
RD Silverman (I was going to say Dr. Silverman but I do not know if you are or not)

Sarcasm is the lowest form of wit. (And you seem to propel yourself to that low end of the spectrum).
Should we start to factor this number in this forum? Like 2^991-1
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