Archived sieve reservations and discussions

[cipher]

5600-5900T Range 2 cipher reserved.

[cipher]

5420-5500 Complete cipher

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

[JohnFullspeed]

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]

Originally Posted by JohnFullspeed

5390T-5420T ????

5390T = 5390 * 10^12

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

5390002989229981 | 5797113*2^487536+1

[JohnFullspeed]

Thanks
5390T = 5390 * 10^12

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

Regards
John

[Puzzle-Peter]

Originally Posted by JohnFullspeed

Thanks
5390T = 5390 * 10^12

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

Regards
John

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]

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]

Originally Posted by JohnFullspeed

I well want to joint the projet

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

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: http://sites.google.com/site/kenscode/prime-programs
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:
http://www.mersenneforum.org/showpos...67&postcount=2

[gribozavr]

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

[mdettweiler]

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

Reserving 950T-955T (range 3).

[Oddball]

5535T-5600T complete, 11319 factors found:

http://www.sendspace.com/file/clkcme

(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.)