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Search: Posts Made By: Batalov
Forum: Software 2020-11-17, 08:05
Replies: 5
Views: 266
Posted By Batalov
It depends on what you are planning to find. ▪...

It depends on what you are planning to find.
▪ Plan A. You want to sieve and then you want to test all of them and find all primes (~4 or even 7-8 if you keep even k values in the sieve), then see...
Forum: Miscellaneous Math 2020-11-15, 20:31
Replies: 48
Views: 1,025
Posted By Batalov
Lightbulb Matthew 7:6

The only sensible part is the (terribly executed parody of a) Fermat test. Which is one line.
The rest of the code is numerology. In essence OP thinks that some Carmichaels are prime and some are...
Forum: Alberico Lepore 2020-11-15, 17:56
Replies: 6
Views: 582
Posted By Batalov
:direction: ...

:direction:
https://mersenneforum.org/showthread.php?t=26195
Forum: NFS@Home 2020-11-14, 04:48
Replies: 1,828
Views: 116,802
Posted By Batalov
Post I noticed that NFS@Home website lost its .ico...

I noticed that NFS@Home website lost its .ico file.
maybe all you need is to put it in root web server folder?
It shows the AT&T icon for the few last days.
Looks like this:
Forum: And now for something completely different 2020-11-13, 20:34
Replies: 13
Views: 524
Posted By Batalov
Yes

Yes
Forum: Math 2020-11-13, 02:45
Replies: 9
Views: 342
Posted By Batalov
There is no proof, but you could most likely...

There is no proof, but you could most likely withdraw nine digits, -- all except "1".
There is likely an infinity of primes that are decimal repeated units.
{R _ p} = {{10^p-1} \over 9}
Forum: And now for something completely different 2020-11-12, 21:13
Replies: 13
Views: 524
Posted By Batalov
Lightbulb I submit that k*p#/2+d (where d=+-2,+-4,+-8) has...

I submit that k*p#/2+d (where d=+-2,+-4,+-8) has a benefit of leaving relatively dense set of odd k values, so one can sieve deeper than for other forms, with end result of finding quint faster (wall...
Forum: Soap Box 2020-11-11, 08:28
Replies: 521
Views: 26,935
Posted By Batalov
rolleyes Matt put together an educational video quite...

Matt put together an educational video quite fast... with a clickbait title, too!
etx0k1nLn78
Spoiler alert: it is mostly just math, no politics.
Forum: Math 2020-11-11, 06:15
Replies: 14
Views: 237
Posted By Batalov
w00t I want to muck with forum's tex software. (by...

I want to muck with forum's tex software. (by posting straight from Wiki.)


[$](H^{-1})_{ij} = (-1)^{i+j}(i + j - 1) \binom {n + i - 1}{n - j} \binom {n + j - 1}{n - i} \binom {i + j - 2}{i -...
Forum: GPU Computing 2020-11-10, 23:57
Replies: 32
Views: 7,303
Posted By Batalov
Question Then you turned it into mfaktc (which is its...

Then you turned it into mfaktc (which is its parent program).
Trouble is that more universal programs need extra registers to hold variables (that are in the stricter program a constant), and the...
Forum: GPU Computing 2020-11-10, 08:17
Replies: 32
Views: 7,303
Posted By Batalov
Lightbulb There is no contradiction here. R10211584161 is...

There is no contradiction here.
R10211584161 is a shorthand for (10^211584161-1)/9. That's 211584161 "ones" in decimal notation.
M211584161 is a shorthand for 2^211584161-1. That's 211584161 "ones"...
Forum: FermatSearch 2020-11-07, 20:25
Replies: 32
Views: 1,002
Posted By Batalov
w00t Damn it! You had to give away our precious...

Damn it! You had to give away our precious secret!
:kracker:

By the way, -- this reminds my doubts when I heard that there was a theory that the Fermat div probability was not merely ~1/k, and...
Forum: Lounge 2020-11-07, 08:30
Replies: 4,119
Views: 263,139
Posted By Batalov
rolleyes Ay caramba! P.S. ...yes, that YT video was...

Ay caramba!

P.S. ...yes, that YT video was where I snapped it from.
Forum: Soap Box 2020-11-06, 21:48
Replies: 521
Views: 26,935
Posted By Batalov
w00t Size does matter for the most beautiful voice. ...

Size does matter for the most beautiful voice.
(And the lyrics probably match someone's spirits at this point.)
YuBeBjqKSGQ YQpTGKXAxqA
Full bodied ladies really can sing.
Forum: Miscellaneous Math 2020-11-05, 23:35
Replies: 57
Views: 3,676
Posted By Batalov
Just factor this: ...

Just factor this:
22881674130987296817369335083505533792239602706912929845514703469287126491267727124570402660433186186250608348826913204513283590140161157396044966038359555681362347423
Forum: Soap Box 2020-11-05, 19:22
Replies: 39
Views: 1,208
Posted By Batalov
Cry The 2006 film explains why that decision may be a...

The 2006 film explains why that decision may be a fallacy:
sP2tUW0HDHA
I confess that I never saw that film until, like, last month.
(Saw the Cracked youtube video about it - 'is it deep or...
Forum: And now for something completely different 2020-11-05, 19:06
Replies: 13
Views: 524
Posted By Batalov
Thumbs up Great job! Congrats!

Great job! Congrats!
Forum: Alberico Lepore 2020-11-05, 09:17
Replies: 6
Views: 582
Posted By Batalov
Anyone can factor N=187! Try and factor...

Anyone can factor N=187!
Try and factor something really hard, like N=6 or ...maybe 15. :tire:
Forum: FermatSearch 2020-11-05, 09:01
Replies: 32
Views: 1,002
Posted By Batalov
Lightbulb There is an important consideration: a factor can...

There is an important consideration: a factor can only be found if it exists in the "range of possible to find". (You seem to think that there are factors everywhere, that programs just produce them...
Forum: FermatSearch 2020-11-05, 05:52
Replies: 32
Views: 1,002
Posted By Batalov
That's irrelevant. (If all you have is a hammer,...

That's irrelevant. (If all you have is a hammer, everything looks like a nail.)

Peter Strasser searched really hard with software shown here (http://www.fermatsearch.org/productivity.html) and...
Forum: GMP-ECM 2020-11-05, 05:36
Replies: 28
Views: 1,370
Posted By Batalov
Question or Ryan's dog? Who knows!

or Ryan's dog? Who knows!
Forum: GMP-ECM 2020-11-05, 01:38
Replies: 28
Views: 1,370
Posted By Batalov
It takes about 2 hrs for the Stage 1 and another...

It takes about 2 hrs for the Stage 1 and another hour for Stage 2 (and not too much RAM) to reproduce this ECM hit.
As it was originally found, it was perhaps a 12-15 CPUhour run, you know, 7 yrs...
Forum: Soap Box 2020-11-04, 21:42
Replies: 39
Views: 1,208
Posted By Batalov
rolleyes It is almost anachronistic to see this battle as...

It is almost anachronistic to see this battle as it is: as "town against countryland". But that's what it looks like. In the 21st century.

In rural states with huge cities, it is fast to count all...
Forum: GMP-ECM 2020-11-04, 21:03
Replies: 28
Views: 1,370
Posted By Batalov
Lightbulb Go here and rent a node...

Go here and rent a node (https://aws.amazon.com/ec2/). It will not be very different. x86_64 GNU/Linux, Xeon 8xxx CPU @ 3.00 - 3.40 GHz or similar. Maybe newer, maybe slightly older. It doesn't...
Forum: GMP-ECM 2020-11-04, 04:00
Replies: 28
Views: 1,370
Posted By Batalov
Lightbulb Use this "3rd" website - ...

Use this "3rd" website -
http://factordb.com/index.php?id=1100000000632146801
then click on green arrow next to "ECM" ... or here (http://factordb.com/frame_ecm.php?id=1100000000632146801),
then...
Showing results 1 to 25 of 1000

 
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