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Forum: Operazione Doppi Mersennes 2020-11-30, 19:54
Replies: 1
Views: 69
Posted By Batalov
Question In 2015, exactly? Because it was moved....

In 2015, exactly? Because it was moved. (https://mersenneforum.org/showthread.php?p=425919#post425919)

After 2017? That's another question.
Forum: NFS@Home 2020-11-28, 23:36
Replies: 92
Views: 12,123
Posted By Batalov
Arrow Lucas(1366)

Sat Nov 28 17:20:02 2020
p90 factor: 307317728438156178912354154027380458007548236107425572345727068728034920536054195152991203
p172 cofactor: 112455942..09

d3y1jeVT
Forum: Soap Box 2020-11-27, 18:57
Replies: 563
Views: 29,020
Posted By Batalov
Gotta confess, I watched the first post-election...

Gotta confess, I watched the first post-election week of TV news (mind, you all channels, half a dozen, even OANN), flipping for 5-10 minutes apiece. It was an interesting challenge and good exercise...
Forum: Miscellaneous Math 2020-11-27, 06:46
Replies: 15
Views: 260
Posted By Batalov
Cool 10474500 + 999 · 10237249 + 1 (a palindrome) has...

10474500 + 999 · 10237249 + 1 (a palindrome) has 50% factorization and is 474,501 decimal digits long.

Also,
1234471048576-123447524288+1 is prime! (5,338,805 decimal digits) Time : 187808.030...
Forum: ONeil 2020-11-26, 09:26
Replies: 18
Views: 604
Posted By Batalov
:pb:

:pb:
Forum: Miscellaneous Math 2020-11-26, 01:27
Replies: 4
Views: 134
Posted By Batalov
You have been trying to factor the Prime since...

You have been trying to factor the Prime since discovery? That's intriguing!

Tell us more! :beer2::popcorn:
Forum: Lounge 2020-11-24, 10:31
Replies: 970
Views: 55,622
Posted By Batalov
Caroline Shaw - and - Caroline Rose ...

Caroline Shaw - and - Caroline Rose
-x3MuU8i3pYqTdFztlOc28
Forum: Software 2020-11-17, 08:05
Replies: 5
Views: 305
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: ONeil 2020-11-15, 20:31
Replies: 48
Views: 1,099
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: 604
Posted By Batalov
:direction: ...

:direction:
https://mersenneforum.org/showthread.php?t=26195
Forum: NFS@Home 2020-11-14, 04:48
Replies: 1,828
Views: 118,131
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: 559
Posted By Batalov
Yes

Yes
Forum: Math 2020-11-13, 02:45
Replies: 9
Views: 371
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: 559
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: 563
Views: 29,020
Posted By Batalov
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: 259
Posted By Batalov
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: 7,838
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: 7,838
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: 1,061
Posted By Batalov
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: 4,151
Views: 266,271
Posted By Batalov
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: 563
Views: 29,020
Posted By Batalov
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: 3,996
Posted By Batalov
Just factor this: ...

Just factor this:
22881674130987296817369335083505533792239602706912929845514703469287126491267727124570402660433186186250608348826913204513283590140161157396044966038359555681362347423
Forum: Soap Box 2020-11-05, 19:22
Replies: 39
Views: 1,244
Posted By Batalov
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: 559
Posted By Batalov
Thumbs up Great job! Congrats!

Great job! Congrats!
Forum: Alberico Lepore 2020-11-05, 09:17
Replies: 6
Views: 604
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:
Showing results 1 to 25 of 1000

 
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