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Messages 19053 - 19082 of 21093   Oldest  |  < Older  |  Newer >  |  Newest
Messages: Simplify | Expand   (Group by Topic) Author Sort by Date ^
19053
... of ... *m)) ... a /whole ... and ... & ... ((would imply that 'n' > 1 (now, I think my argument is preserved.)) ... from ... F4=65537. ... ((would imply...
leavemsg1
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Aug 1, 2007
2:47 pm
19054
I have to say, I have a lot of trouble following any argument that uses a modulus of 1. Could you use more words, more generalized equations, describe more ...
Joseph Moore
jtpk
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Aug 1, 2007
10:02 pm
19055
I have one rather simple explanation for why I think that the number of Fermat primes is finite. Conjecture: If a Fermat number of the form F(k,m)=...
leavemsg1
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Aug 2, 2007
6:35 pm
19056
Hello, the k-tuplets page is down since several days. In addition Tony Forbes' e-mail adress @ltkz.demon.co.uk is not working. Does anyone know an actual...
Dirk Augustin
trex400
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Aug 2, 2007
6:54 pm
19057
... See http://mersenneforum.org/showthread.php?t=8832 The page is archived at http://web.archive.org/web/20070405115024/www.ltkz.demon.co.uk/ktuplets.htm Tony...
Jens Kruse Andersen
jkand71
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Aug 2, 2007
11:09 pm
19058
Let p < q be consecutive prime numbers. Does sum(1/(q-p*ln q), p=2..inf, converge exactly to 6?...
Werner D. Sand
theo2357
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Aug 4, 2007
12:24 am
19059
10347747270980*3^n+1, n from 1 to 10 all prime Do these prime runs have a name?(base 2 this would be a Cunningham Chain)...
Robert
robert44444uk
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Aug 7, 2007
1:01 pm
19060
... http://primes.utm.edu/glossary/page.php?sort=CunninghamChain says: "Note that some authors extend the definition of Cunningham Chain to all sequences of...
Jens Kruse Andersen
jkand71
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Aug 7, 2007
1:47 pm
19061
Does it even converge? If gap size at p is about ln(p) then (with all equalities being "approximately equal to") q=p+ln(p) so q-p*ln(q)=p+ln(p)-p*ln(p+ln (p))...
Adam
a_math_guy
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Aug 8, 2007
4:49 pm
19062
That's right. One could also say: q ~ p, for p/q ~ 1. Then 1/(q-p*ln q) ~ 1/(p-p*ln p) and int(1/(x-x*ln x)) = -ln (ln x - 1) -> -inf. Thanks. Can you...
Werner D. Sand
theo2357
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Aug 9, 2007
9:33 am
19063
Hi all, I just realixzed that the 40th and largest Carol Prime n=253987, was reported on the prime database on Carol's birthday, May 7, 2007... ... Moody...
Cletus Emmanuel
cemmanu
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Aug 9, 2007
7:48 pm
19064
Suppose you are trying to approximate sum over large primes p of a(p) where a(p) is some monotonically decreasing to 0 function of p. Instead of writing...
Adam
a_math_guy
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Aug 11, 2007
7:34 pm
19065
Powers of Two Numbers are 1 21 421 8421 168421 32168421 6432168421 1286432168421 ... The conjecture is that 421 is the only Power of Two Prime. The other...
miltbrown@...
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Aug 11, 2007
8:26 pm
19066
... Proof: Sum(i=0..N, 10^something(i)*2^i) mod 3 = Sum(i=0..N, 2^i) mod 3 = 2^(N+1)-1 mod 3 = 0 for odd N, 1 for even N. Q.E.D. Peter -- [Name] Peter Kosinar...
Peter Kosinar
pkosinar
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Aug 11, 2007
9:05 pm
19067
... Chain) ... http://ourworld.compuserve.com/homepages/hlifchitz/Henri/us/CunnGenus.htm, ... I can feel another project coming on: The longest chains...
Robert
robert44444uk
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Aug 12, 2007
9:32 am
19068
Hi all, I am now ready to publish Carol/Kynea numbers. How do i go about doing that/ What journal should I submit to/ Is there a special format? Any help...
Cletus Emmanuel
cemmanu
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Aug 14, 2007
9:15 pm
19069
No prime p is (p-1)modulo 4, as primes that are(p-1)modulo 2 are [(p-1)/2]modulo4, and if the order of pmodulo2 is less than p-1, then the modulo4 of p is...
Robert
robert44444uk
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Aug 16, 2007
11:24 am
19070
... Hmm, must have been drunk when I wrote this. For modulo read modulo order, or multiplicative order. No base that is square produces a p-1 multiplicative...
Robert
robert44444uk
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Aug 18, 2007
6:26 am
19071
Hello all: I have obtained this result: DivisorSigma[2k,m]/DivisorSigma[k,m] is integer if and only if m is a perfect square DivisorSigma[k,m]=sum[d^k, d...
Sebastián Mart...
sebi_sebi
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Aug 20, 2007
3:31 am
19072
Hello all: I have obtained this result: DivisorSigma[2k,m]/DivisorSigma[k,m] is integer if and only if m is a perfect square DivisorSigma[k,m]=sum[d^k, d...
Sebastian Martin
sebi_sebi
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Aug 20, 2007
9:09 am
19073
... I obtain a lot of small counterexamples with k=1, some with k=2, and ... 4 (3) (7) ... q1 := 2726235765168410 q2 := 7247255655544865674860411008810 ...
Adam
a_math_guy
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Aug 21, 2007
5:38 pm
19074
7203 is NOT a perfect square The result is true only if only m is a perfect square: m=n^2 m= 1, 4, 9, 16, 25, 36, ...... ... I obtain a lot of small...
Sebastian Martin
sebi_sebi
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Aug 21, 2007
8:03 pm
19075
7203 is not a perfect square! Maybe you didn't mean "if and only if." Part of "if and only if" is: sigma[2k](m)/sigma[k](m) is integer only if m is a square I...
Adam
a_math_guy
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Aug 21, 2007
8:10 pm
19076
... As Adam already disproved the "only if" part, let's concentrate on the "if" one. First, there are two simple observations to make: 1) If p is a prime, ...
Peter Kosinar
pkosinar
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Aug 21, 2007
9:04 pm
19077
Sebastián Martín Ruiz Said: 1. Divisor Function Posted by: "Sebastián Martín Ruiz" sebi_sebi@... sebi_sebi Date: Sun Aug 19, 2007 8:31 pm ((PDT)) ...
Kermit Rose
kermit1941
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Aug 25, 2007
11:27 pm
19078
Main page ( http://www.opertech.com/primes/k-tuples.html ) The latest updates have been posted, with improvements to more than 2200 widths. Currently there are...
Tom
thoeng
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Aug 28, 2007
4:36 am
19079
... This page mentions the incompatibility of the 2 conjectures here http://en.wikipedia.org/wiki/Second_Hardy-Littlewood_conjecture and references your...
Dick
richard042
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Aug 28, 2007
1:02 pm
19080
Hi, Let p2 be a large prime. We find another large random prime p1, such that y = (2*p1*p2) + 1. Is there any way, one could quantify the probability of y...
jtrjtrjtr2001
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Sep 9, 2007
4:41 am
19081
... Well, it's just like any arbitrary number of the same size except that it's even, it's not divisible by p1, and it's not divisible by p2. Therefore there's...
Phil Carmody
thefatphil
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Sep 9, 2007
9:38 am
19082
Hello group, after about 140 days on an Athlon XP 2600 with the use of a combined sieving and prp program written by Jens Kruse Andersen, I found a new ...
Dirk Augustin
trex400
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Sep 11, 2007
6:29 pm
Messages 19053 - 19082 of 21093   Oldest  |  < Older  |  Newer >  |  Newest
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