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Search: Posts Made By: Batalov
Forum: Science & Technology 2021-09-27, 16:52
Replies: 256
Views: 20,349
Posted By Batalov
For the group 65+, the results are proven to be...

For the group 65+, the results are proven to be very beneficial; and it is approved by FDA and CDC. Not mandatory.
At our place, you could get the third shot for a week now, anytime - starting from...
Forum: And now for something completely different 2021-09-27, 03:34
Replies: 10
Views: 564
Posted By Batalov
Kamada's updated his site, I see. I updated...

Kamada's updated his site, I see.
I updated OEIS.
Forum: Science & Technology 2021-09-27, 00:21
Replies: 256
Views: 20,349
Posted By Batalov
The CDC made a very poor job of communicating,...

The CDC made a very poor job of communicating, Some even call it a PR disaster.

Even nurses and doctors at our hospital are all confused. While the booster was announced a month ago internally as...
Forum: And now for something completely different 2021-09-26, 01:33
Replies: 25
Views: 7,511
Posted By Batalov
I did test for the 4th AP term. for the...

I did test for the 4th AP term.


for the lower AP-3, 5^2 | A(4)
for the higher AP-3, I have not found a trivial factor, but it is composite.
A1 = 5606879602425*2^1290000-1 prime
A2 =...
Forum: And now for something completely different 2021-09-25, 22:50
Replies: 25
Views: 7,511
Posted By Batalov
I sieved to 2^37-ish iirc, so ..good! My sieve...

I sieved to 2^37-ish iirc, so ..good! My sieve doesn't have a bug. :rolleyes:

The middle part primes (array of Yi) are of course known, - and I do add a comment to them. That comment will make...
Forum: And now for something completely different 2021-09-25, 22:32
Replies: 25
Views: 7,511
Posted By Batalov
Lightbulb I usually wait for a year or two to pass, then...

I usually wait for a year or two to pass, then use some old scripts and some new- for those AP-3 weightligting approaches.
Clearly I must give kudos to David Broadhurst - because he invented this...
Forum: Information & Answers 2021-09-24, 17:56
Replies: 58
Views: 7,279
Posted By Batalov
I ran some prep work, because that phrase...

I ran some prep work, because that phrase bothered me too.

So - both in game and/or betting world and/or medical genetics field, and in statistics that underlies all them, there is quantification...
Forum: And now for something completely different 2021-09-24, 17:33
Replies: 25
Views: 7,511
Posted By Batalov
Yes. I was too excited to speak in full...

Yes. I was too excited to speak in full sentences. :batalov:
Forum: Information & Answers 2021-09-24, 09:22
Replies: 58
Views: 7,279
Posted By Batalov
Indeed you are confused. A Russian (collective...

Indeed you are confused.
A Russian (collective pseudonymous) philosopher Prutkov's aphorism goes: "If you see a 'buffalo' sign on an elephant's cage, do not trust your eyes."

It was surely not...
Forum: Information & Answers 2021-09-24, 08:13
Replies: 58
Views: 7,279
Posted By Batalov
Ok,let's count this for half of the first step....

Ok,let's count this for half of the first step. You established the prior.I will even grant you that there are no expected factors below 2^212 (which is 1/6th of the size)
Now what?
So far, what...
Forum: Information & Answers 2021-09-24, 07:00
Replies: 58
Views: 7,279
Posted By Batalov
Thumbs down Can you show anything other than "because I think...

Can you show anything other than "because I think so" for that belief?
While factoring numbers of even lesser size we have routinely obtained three- and even four-way...
Forum: And now for something completely different 2021-09-24, 06:43
Replies: 25
Views: 7,511
Posted By Batalov
Shoot! That didn't last long... 884748...

Shoot! That didn't last long...
884748 (https://primes.utm.edu/primes/page.php?id=132743) digits is now the new top. :rolleyes:
Forum: And now for something completely different 2021-09-23, 22:14
Replies: 25
Views: 7,511
Posted By Batalov
Lightbulb New record AP-3 with a 807,954-digit max element:...

New record AP-3 with a 807,954-digit max element:
6325241166627*2^1290000-1+d*(1455*2^2683953-6325241166627*2^1290000), d=0 (https://primes.utm.edu/primes/page.php?id=132739),1...
Forum: And now for something completely different 2021-09-23, 00:29
Replies: 13
Views: 389
Posted By Batalov
That is funny (if it was supposed to be a joke) -...

That is funny (if it was supposed to be a joke) - but incorrect.
9-digit palindrome primes exist and there are tons of them. For example, 100030001.
1234567...
Forum: And now for something completely different 2021-09-22, 09:15
Replies: 10
Views: 564
Posted By Batalov
Arrow Makoto Kamada would be interested to extend his...

Makoto Kamada would be interested to extend his collection. https://stdkmd.net/nrr/1/10007.htm
Send those findings to him... and to OEIS: https://oeis.org/A088274
Forum: Dobri 2021-09-21, 23:15
Replies: 50
Views: 1,617
Posted By Batalov
Well, isn't it fun racing the race that already...

Well, isn't it fun racing the race that already finished in 1976 (https://www.ams.org/journals/mcom/1978-32-142/S0025-5718-1978-0476616-X/S0025-5718-1978-0476616-X.pdf) and reporting results as if...
Forum: And now for something completely different 2021-09-21, 19:53
Replies: 13
Views: 389
Posted By Batalov
Credit (and SIM-) card numbers have the similar...

Credit (and SIM-) card numbers have the similar (not the same (https://en.wikipedia.org/wiki/Luhn_algorithm)) protection from typos and transpositions.
Forum: And now for something completely different 2021-09-21, 19:31
Replies: 13
Views: 389
Posted By Batalov
Lightbulb I've actually been asked, so I could repost here...

I've actually been asked, so I could repost here exactly why every "even-length" palindrome is divisible by "11" (think decimal, but it is true for any base b).
We could simply say that order of...
Forum: Aliquot Sequences 2021-09-21, 19:02
Replies: 3,115
Views: 250,696
Posted By Batalov
Yeah, there are a few threads over years to the...

Yeah, there are a few threads over years to the same effect. It is.

For smaller numbers/projects, it is very difficult to hit the exact cusp, so the usual rule of thumb for automatic scripts is...
Forum: Riesel Prime Search 2021-09-21, 01:30
Replies: 274
Views: 47,442
Posted By Batalov
Thumbs up Good! Excellent! Even Kamada-san wrote to him...

Good! Excellent!
Even Kamada-san wrote to him and cc:'d me (as if I could help :rolleyes: ).

But it is fixed now, cool beans.
Forum: Lounge 2021-09-21, 01:27
Replies: 1,701
Views: 135,511
Posted By Batalov
knptjRo83Ec La Palma volcano eruption continues...

knptjRo83Ec
La Palma volcano eruption continues on Canary Island | LIVE
1,397 watching now
Started streaming 5 hours ago



@xilman - I hope the wind blows the other way for you?
Forum: Aliquot Sequences 2021-09-21, 01:08
Replies: 3,115
Views: 250,696
Posted By Batalov
That's the famous cusp (of convergence)

That's the famous cusp (of convergence)
Forum: Wagstaff PRP Search 2021-09-20, 19:33
Replies: 5
Views: 5,483
Posted By Batalov
Use (a-b)(a+b) = a2 - b2 and Bob's your uncle.

Use (a-b)(a+b) = a2 - b2
and Bob's your uncle.
Forum: And now for something completely different 2021-09-17, 17:49
Replies: 13
Views: 389
Posted By Batalov
...but 10^(n)-epsilon has n digits And of...

...but 10^(n)-epsilon has n digits

And of course, the only palindrome prime that has an even number of digits (in any base, actually) is "11"! (And even "11" can be composite; then none.)
All...
Forum: NFS@Home 2021-09-16, 16:33
Replies: 33
Views: 3,798
Posted By Batalov
8p3_930M is done

Thu Sep 16 01:02:09 2021
p88 factor: 8140818645611617140423189084010180374627188803000899172278298237756498599357784319269741
p100 factor:...
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