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Search: Posts Made By: Batalov
Forum: Aliquot Sequences 2022-08-05, 01:30
Replies: 3,698
Views: 442,365
Posted By Batalov
Taking 199152

Taking 199152
Forum: Lounge 2022-08-04, 05:37
Replies: 119
Views: 7,202
Posted By Batalov
Talking too easy!

too easy!
Forum: And now for something completely different 2022-08-04, 01:37
Replies: 49
Views: 10,623
Posted By Batalov
Should this sequence be finite or infinite? ...

Should this sequence be finite or infinite?
[/QUOTE]
I have concerns about your reading comprehension.

Maybe A355956 tells something on this subject? Ah... wait...!
Forum: FactorDB 2022-08-04, 01:32
Replies: 571
Views: 108,133
Posted By Batalov
It's not just you! factordb.com...

It's not just you! factordb.com (https://downforeveryoneorjustme.com/factordb.com) is down.
Forum: And now for something completely different 2022-08-02, 22:59
Replies: 49
Views: 10,623
Posted By Batalov
Lightbulb {parody of some folks' posts} But... but.. if...

{parody of some folks' posts}
But... but.. if you sum up 1000007396's digits you will get 26.
Therefore, the digital root is 8.
If you take the digital root of p(1000007396) you will also get 8....
Forum: Proth Prime Search 2022-08-01, 16:08
Replies: 16
Views: 2,971
Posted By Batalov
19061965*2^1840922+1 is prime :rolleyes:

19061965*2^1840922+1 is prime :rolleyes:
Forum: NFS@Home 2022-07-31, 17:36
Replies: 103
Views: 6,479
Posted By Batalov
2,1416+ is done

2,1416+ cofactor =
p110 factor: 32312139386459660237589835506395782331854721499061954474461527504052156188529138203172395312834444925463648513
p132 factor:...
Forum: Software 2022-07-30, 18:20
Replies: 662
Views: 57,319
Posted By Batalov
Because such FFT doesn't exist. FFT are...

Because such FFT doesn't exist.
FFT are implemented for a certain list of sizes. In vicinity of "122" there are: 120, 128, 144 and so on.

Longer answer: "still why not 122?"
Because FFT is an...
Forum: Lounge 2022-07-27, 23:15
Replies: 13
Views: 284
Posted By Batalov
=

=
Forum: Chess 2022-07-26, 17:53
Replies: 5
Views: 340
Posted By Batalov
bAdqazixuRY

bAdqazixuRY
Forum: Lounge 2022-07-25, 21:12
Replies: 1,973
RIP
Views: 236,331
Posted By Batalov
Paul Sorvino...

Paul Sorvino (https://www.bbc.com/news/world-us-canada-62296883), actor
Forum: Linux 2022-07-25, 10:07
Replies: 21
Views: 532
Posted By Batalov
echo `wc -l a` `wc -l b` |awk '{print $1*100/$3...

echo `wc -l a` `wc -l b` |awk '{print $1*100/$3 "%"}'
Forum: Chess 2022-07-23, 21:43
Replies: 4
Views: 158
Posted By Batalov
Exclamation GM Magnus Carlsen's abdication

https://www.chess.com/news/view/carlsens-abdication-reactions-from-the-chess-world
______________
* just in case, unrelated note:
the last name Nepomniachtchi (Непо́мнящий) is a nice inside joke;...
Forum: And now for something completely different 2022-07-21, 11:51
Replies: 49
Views: 10,623
Posted By Batalov
Cool p(19439060)...

p(19439060) (http://factordb.com/index.php?id=1100000003809020989) and p(19439060)+4 (http://factordb.com/index.php?id=1100000003809021930) are cousin primes.

Work in progress: A355956 = 3, 5, 6,...
Forum: Miscellaneous Math 2022-07-20, 22:46
Replies: 27
Views: 1,196
Posted By Batalov
Lightbulb Re: 32 bits, and later 64 bit limit, and then higher.

Every road begins with a few first steps.

Just to give you, perhaps, a sandwich for the road (because this road is long), there are certain elements that can be used for 1) prototyping, 2)...
Forum: Miscellaneous Math 2022-07-19, 06:18
Replies: 27
Views: 1,196
Posted By Batalov
How about this, straight from Wikipedia (with...

How about this, straight from Wikipedia (with pseudocode changed into python):

def is_pow_onemod_fromWiki(P,D):
# return true if 2^Mp = 1 (mod D)
x=2
y=1
while (P > 1):
...
Forum: Miscellaneous Math 2022-07-18, 10:06
Replies: 27
Views: 1,196
Posted By Batalov
There is nothing that needs explaining. You are...

There is nothing that needs explaining. You are implementing exponentiation by millions of multiplications.

Instead, this method (https://en.wikipedia.org/wiki/Exponentiation_by_squaring) exists...
Forum: NFS@Home 2022-07-17, 20:32
Replies: 103
Views: 6,479
Posted By Batalov
In LA now. (Good dataset, 30M matrix.) ETA ~2...

In LA now. (Good dataset, 30M matrix.) ETA ~2 weeks.
Forum: Lounge 2022-07-17, 00:47
Replies: 296
Views: 45,636
Posted By Batalov
Just use license plate 0C2H5OH :rolleyes:

Just use license plate 0C2H5OH :rolleyes:
Forum: Miscellaneous Math 2022-07-16, 23:06
Replies: 27
Views: 1,196
Posted By Batalov
Exactly! 5 steps is enough, if done properly.

Exactly! 5 steps is enough, if done properly.
Forum: Miscellaneous Math 2022-07-16, 22:42
Replies: 27
Views: 1,196
Posted By Batalov
You are computing Mod(1/2,D)^7 and compare to...

You are computing Mod(1/2,D)^7 and compare to 2^4. (where 4 is simply a red herring value. You can change it to 3, to 7, to anything.)

That's the same as as computing Mod(1/2,D)^P by dividing by...
Forum: Languages -- Ancient & Modern, Human & Machine 2022-07-15, 21:44
Replies: 3
Views: 417
Posted By Batalov
Will we also learn to play go? Neat! EDIT: I...

Will we also learn to play go? Neat!

EDIT: I would be very interested. I can tell those who haven't experienced it - it is very useful if you travel to Japan. While at a conference you can...
Forum: sweety439 2022-07-15, 16:58
Replies: 13
Views: 521
Posted By Batalov
What part of "E.g....

What part of "E.g. (https://dictionary.cambridge.org/us/dictionary/english/eg)" was too difficult to understand?
Forum: And now for something completely different 2022-07-15, 05:07
Replies: 49
Views: 10,623
Posted By Batalov
Wrote a sieve and ran some range and found a few...

Wrote a sieve and ran some range and found a few large sequence elements (e.g. p(2335166)); will run for some more.
And credit where credit is due: look at the state of p(2335166) in FactorDb, eh?...
Forum: NFS@Home 2022-07-14, 20:53
Replies: 103
Views: 6,479
Posted By Batalov
I can help with finishing 2_1416p1

I can help with finishing 2_1416p1
Showing results 1 to 25 of 1000

 
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