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primenumbers · Prime numbers and primality testing

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  • Members: 1090
  • Category: Number Theory
  • Founded: Dec 27, 2000
  • Language: English
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Messages 19121 - 19152 of 25087   Newest  |  < Newer  |  Older >  |  Oldest
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19152 Werner D. Sand
theo2357 Send Email
Nov 30, 2007
9:18 am
... string sequences of prime numbers do exist and they are related. ... http://tech.groups.yahoo.com/group/gr84nrp/ ... proving/disproving the Riemann Zeta...
19151 rubenpal2000 Send Email Nov 30, 2007
4:22 am
See: http://www.rsa.com/rsalabs/node.asp?id=2093...
19150 Jack Brennen
jbrennen Send Email
Nov 30, 2007
12:52 am
... Without commenting on the stuff about prime numbers, I'd point out that the cardinality of the rational numbers is the same as the cardinality of the...
19149 alby7e7 Send Email Nov 29, 2007
11:34 pm
Take a decimal r belonging to R. Es. 13.77, Ok now raise the square and to do so using a linear combination: (13.77) ^ 2 = 13 ^ 2 + 13 * 0.77 + 13.77 * 0.77 /...
19148 Mark Underwood
marku606 Send Email
Nov 29, 2007
6:19 pm
... string sequences of prime numbers do exist and they are related. ... http://tech.groups.yahoo.com/group/gr84nrp/ ... proving/disproving the Riemann Zeta...
19147 Tim Brown
narepoba Send Email
Nov 29, 2007
4:13 am
Hi all, It is time to show that prime numbers are related. No kidding, string sequences of prime numbers do exist and they are related. See an example and...
19146 Jean Penné
jpyah2001 Send Email
Nov 27, 2007
4:11 pm
Hi All, The new version, 3.7.1c of the LLR program is now available. The zipped binaries can be downloaded from the GIMPS site : http://www.mersenne.org/gimps/...
19145 Peter Lesala
plesala@... Send Email
Nov 20, 2007
11:19 am
Hi, I have just completed a nine page document (MS Word document) proving non-existence of odd perfect numbers. I would like to mail the document to this group...
19144 marioneves7 Send Email Nov 18, 2007
11:24 pm
Hi, all Some weeks ago I changed the motherboard of a computer Pentium 4 3.20Ghz, 1,00 GB RAM, with Windows XP 2002 SP2. Using Proth.exe, after a while I get...
19143 Mark Rodenkirch
mgrogue Send Email
Nov 18, 2007
9:37 pm
My first question would be, why are you using Proth instead of LLR or PFGW? --Mark ... [Non-text portions of this message have been removed]...
19142 marioneves7 Send Email Nov 18, 2007
8:33 pm
Hi, all Some weeks ago I changed the motherboard of a computer Pentium 4 3.20Ghz, 1,00 GB RAM, with Windows XP 2002 SP2. Using Proth.exe, after a while I get...
19141 Steve Palmer
unixinu Send Email
Nov 18, 2007
3:07 pm
... I don't think that was the intended claim. I think the claim was probably meant to be that [GCD (n!, n+1 ) = 1] implies that [n! + n + 1] is prime. It...
19140 Kermit Rose
kermit1941 Send Email
Nov 18, 2007
1:28 pm
******* On Sat Nov 17, 2007 12:30 pm ((PST)) "alby7e7" alby7e7@... alby7e7 Posted I suppose... if GCD(n! , n + 1) = 1 if GCD(n! , n + 1 ) != 1 also...
19139 alby7e7 Send Email Nov 17, 2007
8:30 pm
I suppose... if GCD(n! , n + 1) = 1 if GCD(n! , n + 1 ) != 1 also (n+1)+1 so I do GCD(n!, n+2) = 1? if yes I do the sum n! + n+2 also I do another GCD with n+3...
19138 Jean Penné
jpyah2001 Send Email
Nov 15, 2007
7:08 am
Seeing the second red line on the status page : 5345289*2^5345289-1 1609100 L498 Nov 2007 Woodall I am now almost convinced there are hoaxes... Sorry for him,...
19137 Jean Penné
jpyah2001 Send Email
Nov 15, 2007
6:33 am
If I submit the posted candidate to LLR, I get immediatly that : 1562533*2^6250134-1 has a small factor : 3 !! So, if this number has really been tested using...
19136 Paul Underwood
paulunderwooduk Send Email
Nov 14, 2007
9:44 pm
... I guess this is an arithmetical error, and the number should be something like: woodall(3125066). This would fit in with PrimeGrid's current testing...
19135 Jean Penné
jpyah2001 Send Email
Nov 14, 2007
8:28 pm
Hmmmmm... 3 | 1562533*2^6250134-1, but what for 1562533*2^6250134+1 ? At first sight, this Cullen candidate has no small divisor... Mr Karsten Haesslich, I...
19134 leavemsg1 Send Email Nov 12, 2007
11:50 pm
Hi, Group, et al. the famous Fermat function: F(x) = 2^(2^x) +1 let x be from the set of whole numbers: Does F(x) have Q= 2*floor(sqrt((x+3)/2)) number of...
19133 Dan Morenus
dan_morenus Send Email
Nov 8, 2007
3:45 pm
Hi all! I am using Proth.exe version 7.1 to search for Keller primes. I am a little concerned about the ranges of numbers I'm testing though. Will Proth.exe...
19132 edgar_james2002 Send Email Nov 5, 2007
11:01 am
PQ? Cito un passo del discorso di H.W. Lenstra jr. al Congresso Internazionale di Matematica, tenutosi a Berkley (USA) nel 1986: "Supponiamo di avere...
19129 scolnik
scolnik2003 Send Email
Nov 2, 2007
5:53 pm
Does anyone know of some code (Fortran preferably) which solves a single linear Diophantine equation? Thanks Hugo Scolnik [Non-text portions of this message...
19128 ldurman Send Email Nov 2, 2007
9:09 am
So fast we have 2 a new solution and numbers very close. Hmm... 1787882337^4=1662997663^4+1237796960^4+686398000^4 http://www.euler413.narod.ru Leonid Durman...
19127 ldurman Send Email Nov 1, 2007
5:53 am
Using Robert Gerbicz program, I found new primitive solution for Euler Quartic Conjecture 1871713857^4=1593513080^4+1553556440^4+92622401^4 At first Fray using...
19126 George Woltman
woltman9999 Send Email
Oct 31, 2007
3:32 pm
... Special congratulations to Sturle. He's been hunting for big primes for a decade. Patience pays off - he's finally snared a big one. [Non-text portions of...
19125 Paul Underwood
paulunderwooduk Send Email
Oct 31, 2007
12:54 pm
... It seems to be the season for double-checking-found primes: http://www.rieselsieve.com/forum/viewtopic.php?t=1372 496,473 digits this time:...
19124 Paul Underwood
paulunderwooduk Send Email
Oct 31, 2007
4:11 am
Hi, Congratulations to the Seventeen-or-Bust team for their latest prime: Sturle Sunde discovers prime #11!, 33661•2^7031232+1 with 2116617 decimal digits: ...
19123 Roger Lee Bagula
rlbagulatftn Send Email
Oct 23, 2007
2:20 pm
After a nice article in this month's American Mathematical Monthly I found this article online that downloads: ...
19122 Roger L. Bagula
rlbagulatftn Send Email
Oct 23, 2007
8:04 am
I think "Jens Kruse Andersen" is more cool from my personal experience! ... <jens.k.a@...> wrote: This Wikipedia edit is 10 minutes old as I write: ...
19121 Jens Kruse Andersen
jkand71 Send Email
Oct 22, 2007
3:35 am
This Wikipedia edit is 10 minutes old as I write: http://en.wikipedia.org/w/index.php?title=Prime_Pages&diff=166202401&oldid=165149465 Some sceptic reverted it...
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