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Search: Posts Made By: R.D. Silverman
Forum: Factoring 2022-09-28, 21:25
Replies: 1,869
Views: 221,008
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: 11
Views: 750
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: 7,650
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: 7,650
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: 7,650
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.
Forum: Cunningham Tables 2022-09-09, 19:54
Replies: 53
Views: 7,650
Posted By R.D. Silverman
A very nice effort.

A very nice effort.
Forum: Factoring 2022-09-06, 13:48
Replies: 1,869
Views: 221,008
Posted By R.D. Silverman
The factor database. http://www.factordb.com/

The factor database. http://www.factordb.com/
Forum: Factoring 2022-09-04, 22:35
Replies: 1,869
Views: 221,008
Posted By R.D. Silverman
Minor Milestone

I have finished factoring all HCN composites a^n +/- b^n for a > b, (a,b) = 1, a <= 20 and n <= 150
Forum: FactorDB 2022-09-04, 01:03
Replies: 6
Views: 410
Posted By R.D. Silverman
Forum: Cunningham Tables 2022-08-27, 01:40
Replies: 30
Views: 18,354
Posted By R.D. Silverman
GMP-ECM is readily available for either windows...

GMP-ECM is readily available for either windows or Linux. However, for the remaing 'gang of 31' we need a mass effort. I was speculating/asking about how to organize such.
Forum: Cunningham Tables 2022-08-27, 01:37
Replies: 30
Views: 18,354
Posted By R.D. Silverman
ECM has been run; just not the current run. And...

ECM has been run; just not the current run. And these numbers were removed. They are not part of the 'gang of 31'
that we believe are too big for NFS@Home.
Forum: Cunningham Tables 2022-08-19, 10:34
Replies: 30
Views: 18,354
Posted By R.D. Silverman
A followup

A fundamental (IMO) question remains. Given that this set of 31 numbers is probably beyond the range of
NFS@Home, what can be done (if anything) to promote the use of ECM beyond that of the...
Forum: Cunningham Tables 2022-07-28, 13:37
Replies: 30
Views: 18,354
Posted By R.D. Silverman
It is amenable, but I doubt that it will work for...

It is amenable, but I doubt that it will work for NFS@Home. The data storage/transfer requirements
would be much too large for a distributed effort. You would have to sieve ONE number and SAVE...
Forum: Cunningham Tables 2022-07-26, 16:57
Replies: 30
Views: 18,354
Posted By R.D. Silverman
This is only 4 bits larger than 2,2178LM. Is the...

This is only 4 bits larger than 2,2178LM. Is the parameter data for those available?
Forum: Cunningham Tables 2022-07-26, 16:55
Replies: 30
Views: 18,354
Posted By R.D. Silverman
Greg has queued the 3 octics. I assume that...

Greg has queued the 3 octics. I assume that 2,1109+ and 2,1091+ will get done eventually. The remainder
seem out of reach for NFS@Home. I suggest we refer to them as the 'Gang of 31'. The "31"...
Forum: Cunningham Tables 2022-07-25, 19:09
Replies: 30
Views: 18,354
Posted By R.D. Silverman
Update

Here is an update to a post that I made some time ago.
This post contains info about recent ECM efforts.

There are currently 37 unfinished numbers from the 1987 hardcover edition of the ...
Forum: Miscellaneous Math 2020-07-21, 15:01
Replies: 57
Views: 27,832
Posted By R.D. Silverman
When someone makes a bold claim and another...

When someone makes a bold claim and another person then asks for clarification
the OP should be obligated to respond. I call that common courtesy. You claim
that people here should be courteous. ...
Forum: Miscellaneous Math 2020-07-21, 13:46
Replies: 57
Views: 27,832
Posted By R.D. Silverman
Of course the O.P. fails to respond to the...

Of course the O.P. fails to respond to the question.
(about his function being nowhere differentiable).
He would have to acknowledge that his claimed theorem is false
and that the so-called proof...
Forum: Miscellaneous Math 2020-07-14, 12:54
Replies: 57
Views: 27,832
Posted By R.D. Silverman
One might also want to ask: When does x^q =...

One might also want to ask:

When does x^q = a mod p have a single root, when does it have multiple roots,
and when does it split completely for given a, p, q???

Welcome to the...
Forum: Miscellaneous Math 2020-07-14, 12:27
Replies: 57
Views: 27,832
Posted By R.D. Silverman
Hey clueless. You can't even do simple...

Hey clueless. You can't even do simple arithmetic. Nor do you bother to study any
math. The result makes you look stupid every time you open your mouth.

Consider any prime q that does NOT...
Forum: Miscellaneous Math 2020-07-11, 02:41
Replies: 57
Views: 27,832
Posted By R.D. Silverman
And there is another valid reasons for not simply...

And there is another valid reasons for not simply answering such questions:

"Give a man a fish and he eats for a day. Teach a man to fish and he eats for a
lifetime".
Forum: Miscellaneous Math 2020-07-11, 02:32
Replies: 57
Views: 27,832
Posted By R.D. Silverman
It requires time to read the question, even if no...

It requires time to read the question, even if no response is given.




Why do you presume that dealing with their posts is stressful? I call it amusement.
And silence gives an implied...
Forum: Miscellaneous Math 2020-07-11, 01:07
Replies: 57
Views: 27,832
Posted By R.D. Silverman
Some additional thoughts: Suppose that I had...

Some additional thoughts:

Suppose that I had asked (in response to the first post)

"What have you done so far that makes you believe what you say? Please
show your work. Also tell us why you...
Forum: Miscellaneous Math 2020-07-11, 00:51
Replies: 57
Views: 27,832
Posted By R.D. Silverman
The O.P. has a very long history of crank and...

The O.P. has a very long history of crank and nonsensical posts combined with
a proven unwillingness to spend time learning anything about the subject. He also
fails to respond to questions...
Forum: Miscellaneous Math 2020-07-10, 22:38
Replies: 57
Views: 27,832
Posted By R.D. Silverman
Point taken. This has become an interesting...

Point taken. This has become an interesting debate over the word "quote".

What I wrote was a follow-on. It was suggested by Happy5214 that the O.P. check whether
4 mod 7 was a cubic...
Showing results 1 to 25 of 1000

 
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