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FW: TWIN PRIMES & Brun's constant? by Dimitris Valianatos GREECE.
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From: dim-val@... To: dim-val@... Subject: TWIN PRIMES & Brun's constant? Date: Thu, 12 Dec 2013 04:15:13 +0200 (1/5)+Σn=1 to infinite
Dimitris Valianatos
1
post
Dec 11
Decomposition of primes
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Hi, Decomposition into weight * level + jump of prime numbers : 2 trivialities: - lesser of twin prime (except 3) have a weight of 3. - by definition primes
6e788c847d3d29aefaa2be25aceec9a8
1
post
Dec 11
Three statements
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... Let x = log(p_n)/n. The the inequality asserts that exp(x) > 1 + x which is true for all positive real x and hence for every prime p_n.
John W. Nicholson
3
posts
Dec 10
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Here it is, in a 7z file. The password is RupertWood. You must have a JRE (Java Runtime Enviromnent) installed to use it. The run.me.bat file shows how the
woodhodgson@...
9
posts
Dec 8
Using Game of Life to generate primes
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Hi, I bumped into this: http://www.nathanieljohnston.com/2009/08/generating-sequences-of-primes-in-conways-game-of-life/ Christ van Willegen -- 09 F9 11 02 9D
Christ van Willegen
1
post
Dec 5
Thread for base-related prime search info
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Dear group members:   I just thought I'd (try to) set aside a space specifically dedicated to things like the search info on the home prime of 49 & 77 (Only
James Merickel
1
post
Dec 2
TWIN PRIMES ALGEBRAIC APPROACH. (2)
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Based on the equivalence of algebraric expressions 6ab+/-a+/-b and pn+/-k we can also draw two complementaries sieves a) for numbers not equal to 6ab-a-b or
Alberto Zelaya
1
post
Dec 1
An arithmetic approach to twin primes conjecture.
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Hello, ... One question : why 100, is it an arbitrary value and if so, how did you choose it ? ... Please do. ... YG
Alberto Zelaya
2
posts
Nov 29
Pie in the sky or a reasonable thought?
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Consider the even number sequence 12, 18, 30, 42, 48, 60, 72, 78, 90, 102, 108, 120 . . . It does not take a genius to produce a simple arithmetic function,
Bob Gilson
1
post
Nov 29
study of wheel sieve algorithms
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Hello list, I finally have some time off and I'm returning to my analysis of prime gaps with the angle of certain wheel sieves. The beginning is here, please
yasep16
1
post
Nov 26
No new messages coming through.
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As far as I can see, in both my email folder, and the yahoo group page itself, your message was the first message in 19 days. I think everyone is taking a
Bill
2
posts
Nov 20
Messages aren't coming through
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At least, my last two replies, sent in the last few days, have not been posted to the group for some reason. Odd.
marku606
1
post
Nov 1
Solution to Fermat's LT
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Hi, Apologies for all the hithes in trying to get this paper posted to everyone. Now at last it's here and I hope to get some feedback. The filename of the
Peter Lesala
1
post
Oct 30
A sharper a-SPRP test ?
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A peaceful day for all members of the group and especially for David I refer to the page http://primes.utm.edu/prove/prove2_3.html Is think the following
bhelmes_1
1
post
Oct 26
Numbers of the form J=2^(2^n) - 1
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Good day all,   I am looking at numbers of the form J=2^(2^n) - 1. First of all, has anyone studied these numbers yet?   Factors of J are Fermat numbers and
Cletus Emmanuel
1
post
Oct 20
Fermat's Last Theorem
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I will have to put the paper on the Interne; and then send another message. Peter ... From: Peter Lesala To: primenumbers@yahoogroups.com Sent: Sunday, October
paulmillscv@...
19
posts
Oct 20
Proposition for a better p-1 and p+1 test
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... For a=3 mod 4 there is no such thing. Please do not post "tests" that refer to non-existent entities. David
bhelmes_1
14
posts
Oct 12
Unsolved Problems web site
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Recently I completed a solution to Fermat's Last Theorem. I need help from someone who can send my document to all of the members of this group. I will be
Tim R
4
posts
Oct 12
Prime sequence, is it likely to be extendable
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Hello David, Thanks for the info. I hadn't spotted the 12*n+13 pattern. Best Regards, Kevin.
Kevin Acres
3
posts
Oct 10
Yet another factoring puzzle
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... It happened thus: 1) I determined to factorize F(n)=((n^2-9)/4)^2-5 for n <= 300, completely. As later shown in "factordb", I succeeded. 2) Meanwhile I ran
23
posts
Sep 27
question on (un)boundedness
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Empirically it appears there is for any n a finite number of values b (both b and n in {2,3,4,...}) such that the prime preceding b^n is not greater than
James Merickel
3
posts
Sep 26
new prime counting function (again)
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I found another prime counting formula that has a very good fit: pi(x)=x/2*{1-sqrt[1-4/ln(x)]}-7 Can someone
chrisdecorte
1
post
Sep 17
emirp all bases 2 through 14?
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No, mistaken about how long eliminating first range would take (another factor of 10), so that project is aborted.  Also, did not check just how small the
James Merickel
4
posts
Sep 16
Minimal Rabin-Miller bases
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I'm working on making primality testing for smallish numbers more efficient in a couple of platforms, including my programming language Frink [1] and in Java 8
Alan Eliasen
1
post
Sep 4
Twin Prime Puzzle
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... I looked to see if managers can keep their groups "classic". Seems not: http://tech.groups.yahoo.com/group/GroupManagersForum/message/43342 et seqq. David
Bob Gilson
12
posts
Sep 1
The primeness of even n compared to odd n in k*2^n+/-1
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... The occurence of more even exponents in the list of primes is a direct result of the distrubution of even and odd n in the input file(s). After sieving to
robert44444uk
2
posts
Aug 21
How the primality of R19 was discovered
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... http://www.ams.org/journals/bull/1930-36-12/S0002-9904-1930-05077-6/S0002-9904-1930-05077-6.pdf Another application of the principle was made by Hoppe in
julienbenney
2
posts
Aug 14
Two parameter PRP test
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... That seems like a fair 6-Selfridge double-Lucas test with two free parameters. So it ought to be foolable by choosing a pair of appropriate cosines.
paulunderwooduk
2
posts
Aug 4
4 Fermat and 1 Lucas
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Tao, Harcos, Englesma, et al seem to have stalled trying to improve Zhang's upper bound of 70,000,000. They claim to have confirmed they got it down to 5414
paulunderwooduk
11
posts
Aug 4
'Almost-Complete' OEIS sequence (reverse-conc.)
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Related to other recent posts here by me, I wish to point out another problem that might be doable with adequate software and hardware but not by me soon.
James Merickel
1
post
Aug 1
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