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Messages 14505 - 14534 of 21093   Oldest  |  < Older  |  Newer >  |  Newest
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14505
... [...] ... pn is the largest prime. ... You are right when you say W+1 is not in the set, but are wrong when you say it has to be prime. You are missing one...
Jose Ramón Brox
ambroxius
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Feb 1, 2004
2:56 pm
14506
Hi, I have been investigating some old buddies in the realm of prime numbers. If we take for example the first 999 digits of Pi and append that to the...
cino hilliard
hillcino368
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Feb 2, 2004
9:45 pm
14507
... these? More of what? Primes close together? Well, yes, it just seems a little difficult to prove it at the moment. ... where ... You seem to be...
Andrew Swallow
umistphd2003
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Feb 2, 2004
10:12 pm
14508
... From the prime page An arithmetic sequence (or arithmetic progression) is a sequence (finite or infinite list) of real numbers for which each term is the...
cino hilliard
hillcino368
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Feb 3, 2004
12:44 am
14509
I make my case even easier. Keep in mind I am not talking about prime progressions. Every odd number not divisible by 3 can be expressed in distinctly one of ...
cino hilliard
hillcino368
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Feb 3, 2004
2:20 am
14510
I was wondering if the schools were still teaching the old, out-dated system of dividing every odd number to test for primality. Everyone is so interested in...
kenox5252
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Feb 3, 2004
3:52 am
14511
How do I solve this equation. Find a and b for a given prime p. What properties must p have for a solution to this equation to exist. a^2 + b^2 = 0 (mod p) and...
eharsh82
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Feb 3, 2004
3:57 am
14512
... Not much interesting about this. Since a^2 = -b^2 (mod p), we have that solutions exist iff -1 is a quadratic residue mod p. If it is, let i denote a...
Carl Devore
carldevore
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Feb 3, 2004
5:01 am
14513
... This problem is not very well posed. Solutions to that equation exist for /any/ prime p, as all it says is that p divides the lhs! I think you want the...
mikeoakes2@...
mikeoakes2
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Feb 3, 2004
8:30 am
14514
... Well I see your point, the proof of FLT is a little complex for most people. But that point of view could also be said to de-value the achievments of some...
Andy Swallow
umistphd2003
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Feb 3, 2004
10:24 am
14515
I don't like being told "never",but I have played with primes off and on for years and found no pattern to them. I have recently discovered that there is a...
kenox5252
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Feb 3, 2004
1:19 pm
14516
Hi Euler (1772) x^2-x+41 is prime for x from 0 to 40 Legendre (1798) x^2+x+41 is prime for x from 0 to 39 Chaffey (2003) 2x^2-88x+997 is prime for x from 0 to...
Juan Ignacio Casaubon
jicasaubon
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Feb 3, 2004
2:35 pm
14517
http://www.primepuzzles.net/problems/prob_037.htm :) I'm currently working on the same idea and over the last year i've found out several simple properties of...
Gerrit Begher
gbegher
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Feb 3, 2004
4:23 pm
14518
... It is as easy to de-value as it is to criticize. ... Does this mean you now agree that the infinitude of primes can be demonstrated by Dirlichlet's ...
cino hilliard
hillcino368
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Feb 3, 2004
5:51 pm
14519
... So far, it looks like you're, uh, "reinventing the wheel." :) Read this earlier message and see if it's similar to what you're doing: ...
Ben Bradley
ben_nospam_b...
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Feb 3, 2004
8:00 pm
14520
... Dirichlet's theorem proves that there are an infinite number of primes in certain infinite subsets of the integers. So the fact that the total number of...
Andrew Swallow
umistphd2003
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Feb 3, 2004
8:04 pm
14521
I would like to call primes of the form a^2+b^2=prime, pythagorean primes. Can anyone proove that there are infinite pythagorean primes? How about the...
eharsh82
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Feb 3, 2004
10:26 pm
14522
... Or you could just call them Gaussian primes, which is more or less what they are. You should be able to find necessary information in any introductory...
Andrew Swallow
umistphd2003
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Feb 3, 2004
11:05 pm
14523
If both a and b are nonzero then z=a+bi, is a Gaussian prime iff a^2+b^2 is an ordinary prime. So there is actually no name for primes of the form a^2+b^2 ...
eharsh82
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Feb 4, 2004
12:31 am
14524
... "Every prime of the form 4n+1 is the sum of two squares. Euler first communicated the following elegant proof of this fact to Goldbach in 1749, two years...
elevensmooth
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Feb 4, 2004
12:36 am
14525
Elevensmooth, http://www.math.uchicago.edu/~kobotis/media/163/kim.pdf prooves there are infinite primes of the from a^2+b^2 So what about when b=a+1 Any...
eharsh82
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Feb 4, 2004
12:44 am
14526
... Then it becomes a univariate quadratic polynomial with interger coefficients. No univariate polynomial of degree greater than has ever been proved to...
Carl Devore
carldevore
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Feb 4, 2004
4:20 am
14527
... Should say "...degree greater than one has ever..."...
Carl Devore
carldevore
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Feb 4, 2004
4:28 am
14528
I am not sure if this series has finite number of primes or not. I think it has infinite primes. I have found several primes in the 10000 digit category. I...
eharsh82
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Feb 4, 2004
5:31 am
14529
... But that is a question you will never be able to answer, one way or another, if all you're doing is search for primes of this type using computer methods....
Andy Swallow
umistphd2003
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Feb 4, 2004
10:41 am
14530
Here is my proof for infiniteness of these primes if b=a+1 then we get 2*a^2+2*a+1 =p solving this a is an integer if there is a prime p such that 2*p-1=m^2 or...
eharsh82
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Feb 5, 2004
12:35 am
14531
Yes. Liu's prime formula is the first formula, which can prove further properties of primes. I wish that you may use the idea to get great success. I try prove...
liufengsui
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Feb 5, 2004
2:22 am
14532
An information type model of the primes applied to odd numbers: Odd Numbers---------> Primes ^ I Info function for Primes as Shannon Noise power function based...
Roger Bagula
rlbagulatftn
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Feb 5, 2004
2:33 pm
14533
Hey guys! I've recently done some more work on so-called "Wilde Primes" although I suggest that if we keep any of Jon Perry's name we should call them "Perry...
richard_heylen
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Feb 6, 2004
2:17 am
14534
... Clear as day, now that it's been pointed out. After all, who could possibly miss the fact that 38 equals (7^3-1)/9... Good one! Jack...
Jack Brennen
jbrennen
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Feb 6, 2004
3:04 am
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