mersenneforum.org  

Go Back   mersenneforum.org > Search Forums

Showing results 1 to 25 of 1000
Search took 0.11 seconds.
Search: Posts Made By: rudy235
Forum: Riesel Prime Search 2021-09-15, 18:17
Replies: 269
Views: 46,913
Posted By rudy235
Wow! A megaprime palindrome. And one with more...

Wow! A megaprime palindrome. And one with more than twice the digits than the previous one!

I have to see it to believe it!:philmoore:
Forum: Riesel Prime Search 2021-09-11, 16:50
Replies: 269
Views: 46,913
Posted By rudy235
Of course all repunits are “palindromes” per se,...

Of course all repunits are “palindromes” per se, but in practical terms when a prime is a Mersenne, a Generalized Mersenne ( to other bases ), repunits, generalized repunits, they are not counted as...
Forum: Riesel Prime Search 2021-09-08, 04:27
Replies: 1,970
Views: 219,536
Posted By rudy235
Both forms of numbers exist, The 3*2k - 1 are...

Both forms of numbers exist,
The 3*2k - 1 are called Thabit primes and there are 64 of them known. https://oeis.org/A002235/b002235.txt

Those of the Form 3*2k + 1 are called Thabit of the...
Forum: Riesel Prime Search 2021-09-07, 18:27
Replies: 1,970
Views: 219,536
Posted By rudy235
The largest prime for 2021 and 2nd largest since...

The largest prime for 2021 and 2nd largest since Christmas 2018 has been discovered.

It is a 3 2 1 Prime i.e. 3*2k-1 The prime is 3*217748034 -1 and has 5342692 digits.

This is the largest...
Forum: Data 2021-08-28, 19:13
Replies: 3,463
Views: 300,643
Posted By rudy235
Correction: at 1 million 1,000,000

Correction: at 1 million 1,000,000
Forum: Data 2021-08-28, 17:15
Replies: 3,463
Views: 300,643
Posted By rudy235
The full list of all Magaprimes (presently 1100)...

The full list of all Magaprimes (presently 1100) can be found at this link https://primes.utm.edu/primes/search.php The minimum number of digits needs to be set at 1000000 and number of results...
Forum: Data 2021-08-28, 04:45
Replies: 3,463
Views: 300,643
Posted By rudy235
1100 Megaprimes

A new milestone of sorts was reached today. There are now 1100 megaprimes.

About half (50%) of those are either of the form k*22+1 or k*22-1
About (30%) 328 are Generalized Fermats
25 divide...
Forum: Prime Gap Searches 2021-08-24, 17:06
Replies: 51
Views: 4,917
Posted By rudy235
I was wondering exactly the same thing. On the...

I was wondering exactly the same thing. On the other hand, a number of the order of 10^19 can be proven prime easily by trial division or sieving.

Keeking track of the Numbers that STILL have...
Forum: Prime Gap Searches 2021-08-23, 19:14
Replies: 51
Views: 4,917
Posted By rudy235
ATH This is the status of the exhaustive...

ATH


This is the status of the exhaustive search. (Unless someone else has covered the numbers after 264+1.03 x1016)

To check in a reliable way that no gap greater or equal to 1432 exists...
Forum: Prime Gap Searches 2021-08-07, 08:19
Replies: 13
Views: 1,648
Posted By rudy235
Probably not.:smile:

Probably not.:smile:
Forum: Prime Gap Searches 2021-07-27, 21:06
Replies: 51
Views: 4,917
Posted By rudy235
i looked for it at the prime gap tables and it...

i looked for it at the prime gap tables and it was not there. Did you report it?
Forum: Prime Gap Searches 2021-07-15, 12:07
Replies: 51
Views: 4,917
Posted By rudy235
This is so exciting. We now have a "probable...

This is so exciting. We now have a "probable maximum gap" with the highest merit of all gaps that have a good chance of being maximal. There are gaps with much higher merits but almost no chance of...
Forum: Miscellaneous Math 2021-07-15, 03:17
Replies: 49
Views: 2,039
Posted By rudy235
Base 10 is an eminent human construct. The only...

Base 10 is an eminent human construct. The only thing interesting about the number TEN (beyond us having ten fingers and 10 toes) is that 10 is both a triangular number and a tetrahedral number.
...
Forum: enzocreti 2021-07-11, 17:32
Replies: 12
Views: 8,444
Posted By rudy235
I never quite understand what you are trying to...

I never quite understand what you are trying to say. Can you explain to the unwashed masses the function pg? What is it? Paying guest? Picogram?
Forum: Lounge 2021-06-30, 20:51
Replies: 1,779
RIP
Views: 179,650
Posted By rudy235
Famous, or better said infamous for his cavalier...

Famous, or better said infamous for his cavalier reply to a soldier who confronted him about the lack of protection against IED's of the transport vehicles in the Iraq theater.

"You go to war with...
Forum: Prime Gap Searches 2021-06-27, 16:31
Replies: 51
Views: 4,917
Posted By rudy235
It used to be that new first occurrences and/or...

It used to be that new first occurrences and/or new maximal gaps were reported to Dr. Nicely. Unfortunately as we all know he passed away on October 2019.

This is the first time I am aware a new...
Forum: Prime Gap Searches 2021-06-20, 19:56
Replies: 51
Views: 4,917
Posted By rudy235
Arrow Even if does not become the new maximal gap. (I...

Even if does not become the new maximal gap. (I would say it has a better than even chance of being that) it will almost certainly become the first occurrence of a gap of 1552. So you won’t go...
Forum: Prime Gap Searches 2021-05-30, 19:52
Replies: 18
Views: 2,356
Posted By rudy235
Bobby: There is very little correlation between...

Bobby: There is very little correlation between small numbers in the Physical world and "small numbers" when it comes to searching for primes.

PRIMO has the capability of proving primes in the...
Forum: Lounge 2021-05-18, 13:44
Replies: 1,779
RIP
Views: 179,650
Posted By rudy235
Darwin's Arch, Galapagos Islands.RIP (Literally)...

Darwin's Arch, Galapagos Islands.RIP (Literally) May 17th 2021

Before and After
24909
Forum: Lounge 2021-05-17, 13:08
Replies: 1,779
RIP
Views: 179,650
Posted By rudy235
I guess he is not as famous as Olympia Dukakis or...

I guess he is not as famous as Olympia Dukakis or Juan Joya Borja but I still believe this guy had some relative fame in the late 80's
...
Forum: And now for something completely different 2021-05-12, 13:27
Replies: 6
Views: 375
Posted By rudy235
Hello Dr Sardonicus. I just learned a new word in...

Hello Dr Sardonicus. I just learned a new word in English, something that seldom happens. And it is a nice word too.


nu·ga·to·ry
/ˈn(y)o͞oɡəˌtôrē/

adjective
of no value or importance.
"a...
Forum: Lounge 2021-05-12, 13:08
Replies: 9
Views: 739
Posted By rudy235
Marin County CA, close to where I live was... ...

Marin County CA, close to where I live was... Named for Chief Marin, "great chief of the tribe Licatiut"

The Marin Civic Center in San Rafael was designed by famed American Architect Frank Lloyd...
Forum: Data 2021-05-01, 22:45
Replies: 3,463
Views: 300,643
Posted By rudy235
MEGAPRIMES

There is a new milestone of sorts today May Day 2021

There are now 1006 mega primes in the Prime List at utm.edu

Five years ago there were only 169, meaning that 5/6 of these mega primes have...
Forum: And now for something completely different 2021-04-27, 00:29
Replies: 8
Views: 717
Posted By rudy235
Ok Serge. Thanks So for 2 k= 1 What are...

Ok Serge. Thanks
So for 2 k= 1

What are then the values of k for 3, 4, 5, 6, 7, 10
Forum: And now for something completely different 2021-04-26, 13:34
Replies: 8
Views: 717
Posted By rudy235
I fully understand the reasons behind the paucity...

I fully understand the reasons behind the paucity of prime repunits to bases that are perfect powers.

What I would love to understand is how to extend the Lenstra–Pomerance–Wagstaff conjecture to...
Showing results 1 to 25 of 1000

 
All times are UTC. The time now is 01:22.


Wed Sep 22 01:22:07 UTC 2021 up 60 days, 19:51, 0 users, load averages: 1.48, 1.47, 1.42

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.