During the last several weeks there have been many messages about a Dubner factor database, finding factors of R(13860) (a repunit), primality proving of...
3115
d.broadhurst@...
Oct 5, 2001 10:27 pm
A nice historical footnote that Harvey was too modest to underline. Hugh Williams and he proved N=R(1031) prime in 1986. Off and on in 2000, Andy Steward and I...
3116
MICHAEL HARTLEY
Michael.Hartley@...
Oct 6, 2001 3:25 am
To: "Prime Numbers" <primenumbers@yahoogroups.com> From: "Jon Perry" <perry@...> Date sent: Thu, 4 Oct 2001 22:51:33...
3117
Guy H Bearman
anastasis_1999@...
Oct 6, 2001 4:46 am
Yes, it's me again :) (all logs are to base e.) Brent (1975) uses the formula, sum(k=1, +inf, (k+1)/zeta(k+1) - k/zeta(k+2))*(log x)^(k-1)/(k+1)! in his work...
3118
Jon Perry
perry@...
Oct 6, 2001 7:54 am
If you consider 2,5,10, i.e. A=2^0*5 B=2^1*1 C=2^1*5 ... (r+s) in this case translates to (s+t), or (1+5)=6, therefore k=1. ... (c+k) becomes a+k = 1. a...
3119
Jon Perry
perry@...
Oct 6, 2001 7:58 am
http://dmoz.org/Science/Math/Number_Theory/Divisibility/ Jon Perry perry@... http://www.users.globalnet.co.uk/~perry BrainBench MVP for HTML and...
3120
Jon Perry
perry@...
Oct 6, 2001 8:04 am
Another weekend puzzle. If f(a,b) denotes the Fibonacii series starting with a,b, a+b, etc..., and f(a,b)[n] is the n-th term. then what is the probability...
3122
E-Rex
erosrex@...
Oct 6, 2001 8:32 am
If so is this mass counted when trying to calculate the total weight of the universe? If not then how do we explain the exsistance of shadows, something that...
3123
E-Rex
erosrex@...
Oct 6, 2001 8:46 am
Is there a name in math for this? I have been a student of numerology for many years now and the fact that no matter how high you count if you ad the number...
3124
Jon Perry
perry@...
Oct 6, 2001 10:15 am
Hey, you know you are right! Jon Perry perry@... http://www.users.globalnet.co.uk/~perry BrainBench MVP for HTML and JavaScript ...
3125
Jon Perry
perry@...
Oct 6, 2001 11:43 am
You have missed i=j<k. 1) is true - I checked it in JScript (I'm working on the others). Jon Perry perry@... ...
3126
Jon Perry
perry@...
Oct 6, 2001 11:45 am
Sorry - you haven't. Jon Perry perry@... http://www.users.globalnet.co.uk/~perry BrainBench MVP for HTML and JavaScript http://www.brainbench.com ...
3127
Jon Perry
perry@...
Oct 6, 2001 1:08 pm
I have added ab+bc+ca to my Anti-Divisor site, visible from: http://www.users.globalnet.co.uk/~perry/maths/antidivisor.htm Go to Other Maths at the bottom of...
3128
Phil Carmody
fatphil@...
Oct 6, 2001 1:36 pm
... Who is 'you'? ?'uoy' si ohW Haven't what? ?tahw t'nevaH Please don't top post. .tsop pot t'nod esaelP Phil...
3129
Phil Carmody
fatphil@...
Oct 6, 2001 1:59 pm
... Casting out nines. If you add the digits together, then you are saying that the digit in the 10s column has the same as if it were in the 1s column. (and...
3130
Phil Carmody
fatphil@...
Oct 6, 2001 7:42 pm
I _love_ Riesel, the best spent $15 ever! (I'd go as far as to say it is worth the Amazon price. After seeing many of the references, Cohen has bubbled up to...
3131
d.broadhurst@...
Oct 6, 2001 8:17 pm
Phil wrote that Riesel wrote that <<< [a conjecture by Cramer] would imply that gap Delta_k occurs before G = O(e^(1.62*sqrt(Delta_k))) >> Some time back, I...
3132
Jon Perry
perry@...
Oct 6, 2001 8:55 pm
This question becomes interesting if looked at in other bases. e.g in base 2, all sequences tend to 1 (very Collatz!) in base 3, 10-->1, 11-->2, 12-->1,...
3133
Jon Perry
perry@...
Oct 6, 2001 9:04 pm
Of interest to this mailing list are the two sequences: A064507 A064508 http://www.research.att.com/~njas/sequences/index.html These cover numbers that form...
3134
Phil Carmody
fatphil@...
Oct 6, 2001 9:17 pm
... Date: Wed Sep 26, 2001 3:50 am Subject: Re: 71 digit L=3360 gap http://groups.yahoo.com/group/primenumbers/message/2929 ... Hahah, I was listening....
3135
Yves Gallot
galloty@...
Oct 6, 2001 9:20 pm
Proth 6.8 is available on the Web. This new version uses a different transform on the Athlon and Duron processors which speeds up the generalized Fermat number...
3136
Martin Moravcik
moravcik@...
Oct 6, 2001 9:41 pm
Hi! on these images you can see prime numbers(white dosts)< 1 000 000 painted by snail transformation http://www.mornet.sk/files/prime.png ...
3137
Jeroen
v.d.burg@...
Oct 6, 2001 11:22 pm
I want to read a CPAPSieve compressed file in a self writen program. Where can i find a doc or something for it? regards Jeroen...
3138
Hans.Rosenthal@...
Oct 6, 2001 11:27 pm
... And what about N=32768 ? Is it 20% faster ? ... So there is still space for some optimizations :) Thank you, Yves. Hans...
3139
Nathan Russell
nrussell@...
Oct 6, 2001 11:38 pm
On Sun, 07 Oct 2001 01:25:28 +0200, "Jeroen" <v.d.burg@...> ... The author once on this group described the file format as 'proprietary'. This may just...
3140
d.broadhurst@...
Oct 7, 2001 8:36 am
Phil Carmody wrote ... ...except that Weintraub would say 500-digit...
3141
Jon Perry
perry@...
Oct 7, 2001 11:12 am
If you were to take an object, place it in darkness and weigh it, would the results be different if you switched the light on? Jon Perry perry@... ...
3142
Yves Gallot
galloty@...
Oct 7, 2001 11:35 am
... 25% on my Athlon @ 1 GHz with DDR memory. ... ??? Because the Athlon is able to compute 1 mul AND 1 add during the same cycle and the PIII only 1 mul OR 1...
3143
Yves Gallot
galloty@...
Oct 7, 2001 11:44 am
... Of course, the energy of photons will perturb the measure... but what that had to do with prime numbers? Yves...
3144
Tim Roberts
t.roberts@...
Oct 7, 2001 11:51 am
How does one use UBASIC for the Miller-Rabin test? For example, if a=11, and m=2501, the first term is 11^2501, which already (unsurprisingly) results in an...
