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Search: Posts Made By: R.D. Silverman
Forum: sweety439 2022-11-24, 12:06
Replies: 21
Views: 1,614
Posted By R.D. Silverman
Complete gibberish. Devoid of content. Please...

Complete gibberish. Devoid of content. Please move this to misc. math.
Forum: Cunningham Tables 2022-11-22, 00:08
Replies: 42
Views: 4,343
Posted By R.D. Silverman
It is unclear to me. I don't think a...

It is unclear to me.


I don't think a delay would matter. More ECM will not hurt in any case.



Whatever Greg decides is fine with me. I have no opinion. They will all get done...
Forum: Cunningham Tables 2022-11-09, 10:41
Replies: 66
Views: 23,771
Posted By R.D. Silverman
The gang of 32 just became the gang of 31 again. ...

The gang of 32 just became the gang of 31 again. Greg queued 2,1097+.......
Forum: Lounge 2022-11-08, 18:22
Replies: 2,021
RIP
Views: 264,475
Posted By R.D. Silverman
I filed it without reading it. Clearly I should...

I filed it without reading it. Clearly I should pay more attention.
Forum: Lounge 2022-11-08, 16:44
Replies: 2,021
RIP
Views: 264,475
Posted By R.D. Silverman
John Brillhart

I am surprised to just find out that John Brillhart passed away in May. He was a good friend.

https://westcoastnumbertheory.org/2022/10/31/in-memory-of-john-brillhart/

A web-search for an...
Forum: Cunningham Tables 2022-11-03, 19:34
Replies: 66
Views: 23,771
Posted By R.D. Silverman
In general, if the yield per q drops off too...

In general, if the yield per q drops off too rapidly, it usually means that the factor bases are too small.
[I'm not suggesting that this is the case here].
Forum: Cunningham Tables 2022-10-14, 02:42
Replies: 66
Views: 23,771
Posted By R.D. Silverman
Interesting. Was 2,2246M unusually easy? ...

Interesting. Was 2,2246M unusually easy? 2,1109+ is 4 digits larger. It should therefore be slightly less than twice as hard. Would this not be less work than 1110 bits of SNFS? [1110 is...
Forum: Cunningham Tables 2022-10-14, 01:33
Replies: 66
Views: 23,771
Posted By R.D. Silverman
The work on 2,2246M C221 suggests that a C225 via...

The work on 2,2246M C221 suggests that a C225 via GNFS should have been within reach.

However, a suitable polynomial for 2,1109+ could not be found. Perhaps it is just an outlier for GNFS.
...
Forum: Cunningham Tables 2022-10-14, 01:02
Replies: 66
Views: 23,771
Posted By R.D. Silverman
I'm not sure why 2,2222L (or M) is even being...

I'm not sure why 2,2222L (or M) is even being proposed before several smaller numbers. (6 of them by my count)
Forum: Cunningham Tables 2022-10-14, 00:49
Replies: 66
Views: 23,771
Posted By R.D. Silverman
I believe that Greg will agree with the...

I believe that Greg will agree with the following......

Too big for NFS@Home. He has said SNFS 330/GNFS 225 is the limit. This places even 2,1097+
and 2, 2194L or M out of reach.



...
Forum: Information & Answers 2022-10-11, 00:02
Replies: 86
Views: 19,160
Posted By R.D. Silverman
Not logical. GIMPS is aimed at finding Mersenne...

Not logical. GIMPS is aimed at finding Mersenne primes. For that purpose once a small factor is found, the work
for that exponent is done. Seth is talking about completely factoring some numbers....
Forum: Information & Answers 2022-10-10, 23:20
Replies: 86
Views: 19,160
Posted By R.D. Silverman
Six??? Within the current Cunningham tables I...

Six??? Within the current Cunningham tables I see:

1213 327511.715079841864486572798550389025242773233223013545064445043124471.C297
1217...
Forum: Cunningham Tables 2022-10-06, 22:02
Replies: 42
Views: 4,343
Posted By R.D. Silverman
The alpha pdf does seem to have a longer tail to...

The alpha pdf does seem to have a longer tail to the right.
Forum: Cunningham Tables 2022-10-06, 12:29
Replies: 42
Views: 4,343
Posted By R.D. Silverman
It seems that my guess was wrong. This does not...

It seems that my guess was wrong. This does not appear to be similar to a Gamma pdf. Is there a central limit
theorem effect happening here?
Forum: Cunningham Tables 2022-10-02, 22:32
Replies: 42
Views: 4,343
Posted By R.D. Silverman
If I had the hardware, I would. I do not have a...

If I had the hardware, I would. I do not have a GPU. I only have a single PC.

We seem to be talking cross purposes. You are focussing on the specifics of how the search is conducted,
and on...
Forum: Cunningham Tables 2022-10-02, 20:23
Replies: 42
Views: 4,343
Posted By R.D. Silverman
For each candidate composite, each polynomial...

For each candidate composite, each polynomial yields an e-score. You may not compute an e-score
for each one, but it does exist. I am asking how the e-scores are distributed across all of the...
Forum: Cunningham Tables 2022-10-02, 12:36
Replies: 42
Views: 4,343
Posted By R.D. Silverman
This is my expectation; below optimal e-scores...

This is my expectation; below optimal e-scores were not captured. It would be a lot of data.
Forum: Cunningham Tables 2022-10-02, 08:59
Replies: 42
Views: 4,343
Posted By R.D. Silverman
Does anyone have any idea how the e-scores are...

Does anyone have any idea how the e-scores are distributed? I doubt that they are Gaussian. My "intuition"
(which could be very wrong) says that they are more likely to be shaped like a...
Forum: Cunningham Tables 2022-10-01, 20:07
Replies: 42
Views: 4,343
Posted By R.D. Silverman
Comparing efforts from different architctures for...

Comparing efforts from different architctures for different problems is fuzzy at best. Thus, -->

I don't know the answer either.



I don't know the answer to this question either!
Forum: Cunningham Tables 2022-10-01, 15:35
Replies: 42
Views: 4,343
Posted By R.D. Silverman
Typically one spends about 5% of the total effort...

Typically one spends about 5% of the total effort on poly selection. Based on prior discussion it seems that
nothing close to that amount of effort has been spent.
Forum: Factoring 2022-09-28, 21:25
Replies: 1,870
Views: 231,088
Posted By R.D. Silverman
Ryan has had two numbers reserved for over four...

Ryan has had two numbers reserved for over four months. Did he forget about them?
Forum: FactorDB 2022-09-16, 23:56
Replies: 49
Views: 5,052
Posted By R.D. Silverman
The discussion seems quite timely. I have been...

The discussion seems quite timely. I have been unable to access the database for the last day. Attempts
to access are now yielding "fixing database tables".
Forum: Cunningham Tables 2022-09-10, 11:52
Replies: 53
Views: 8,683
Posted By R.D. Silverman
Your logic falls short. The fact that Greg...

Your logic falls short.

The fact that Greg mentioned 1.18Billion unique relations in his computation says nothing regarding
msieve's upper bound on raw relation count. Your comment

"Msieve...
Forum: Cunningham Tables 2022-09-10, 05:20
Replies: 53
Views: 8,683
Posted By R.D. Silverman
I can read. You did NOT cite 'unique relations'....

I can read. You did NOT cite 'unique relations'. I quote what you wrote here:

"Msieve can, in principle, handle 4.3 billion relations. "

I do not see the word "unique" anywhere in the post...
Forum: Cunningham Tables 2022-09-09, 23:11
Replies: 53
Views: 8,683
Posted By R.D. Silverman
If one runs sort then uniq on the relations...

If one runs sort then uniq on the relations before handing off to msieve it will greatly reduce the number
of relations it has to handle.
Showing results 1 to 25 of 1000

 
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