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-   -   Archived sieve reservations and discussions (https://www.mersenneforum.org/showthread.php?t=13389)

 cipher 2011-05-24 03:09

5600-5900T Range 2 cipher reserved.

 cipher 2011-05-24 05:32

5420-5500 Complete cipher

[url]http://dl.dropbox.com/u/26515272/5420-5500.rar[/url]

 JohnFullspeed 2011-05-27 07:20

Range

Sorry i do'nt understand you notation

for example
5390T-5420T ????
Can you give the number of digis or a 2^X expression

Thanks
John

 kar_bon 2011-05-27 07:56

[QUOTE=JohnFullspeed;262426]5390T-5420T ????
[/QUOTE]

5390T = 5390 * 10^12

for the example range you gave, the first factor found was (see link above):

5390002989229981 | 5797113*2^487536+1

 JohnFullspeed 2011-05-27 15:29

Range

Thanks
5390T = 5390 * 10^12

But in the sample why ^12? not 10 or20 :just a convention?

Regards
John

 Puzzle-Peter 2011-05-27 16:02

[QUOTE=JohnFullspeed;262458]Thanks
5390T = 5390 * 10^12

But in the sample why ^12? not 10 or20 :just a convention?

Regards
John[/QUOTE]

using multiples of 3 for the exponents reflects the way our number system is constructed: We talk about thousand, million, billion, trillion etc. so we use 10^3, 10^6, 10^9, 10^12 or their SI prefixes k(ilo), M(ega), G(iga), T(era) etc.
Apart from that, it is just a matter of what you're used to do. When I think about 10,000,000,000, I think "10G" instead of "10^10".

 JohnFullspeed 2011-05-27 16:34

Thanks

Merci

I well want to joint the projet

Could you give a range and where I can download the application for Windox Xp?

John

 ellipse 2011-05-27 20:49

[QUOTE=JohnFullspeed;262468]
I well want to joint the projet

Could you give a range and where I can download the application for Windox Xp?
[/QUOTE]
It looks like every range below the optimal sieve depth for n=480K-490K has been taken.

You can try sieving n=490K-495K. The software is here: [URL]http://sites.google.com/site/kenscode/prime-programs[/URL]
but the n=490K-495K file isn't available. If gribozavr uploads it, you can try a range of 950T-960T. That will take you 2-3 days to complete.

You can also do some LLR tests. See this post for details:
[URL]http://www.mersenneforum.org/showpost.php?p=227767&postcount=2[/URL]

 gribozavr 2011-05-27 23:22

490000-494999_28may2011.zip
[url]http://www.sendspace.com/file/1gt6iz[/url]

 mdettweiler 2011-05-31 05:50

5530T-5535T (range 2) complete, 861 factors: [url]http://www.sendspace.com/file/6lrihu[/url]

Reserving 950T-955T (range 3).

 Oddball 2011-05-31 07:53

5535T-5600T complete, 11319 factors found:

[URL]http://www.sendspace.com/file/clkcme[/URL]

(strange coincidence: the end of the sendspace link almost looks like it said "click me". I think that's the first time that something like this happened.)

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