Hi Sam! Here follows the factorization of 11,236. It began as an ggnfs attempt, but sadly ggnfs isn't quite ready yet to handle a factorization of this scale...
Hi Jes, I was thinking about asking you if you could send me the relations on DVD, but it occurs to me that I don't even have a decent enough machine to do the...
... I've kept the relations because this is an interesting case. Anybody who want to have a look at the raw relations can just email me with a snailmail ...
... The short answer is: Don' try. If you really want to factor a C150, ggnfs isn't the right tool (yet). A C150 would take many months just to sieve even if...
... It's another set of GNFS programs made by Centrum voor Wiskunde en Informatica, Amsterdam. It has been around longer than ggnfs and is currently more...
here is an excerpt from the log file from a factorization I'm working on: [04/02 13:16:44] There were 16273/74995 duplicates. [04/02 13:16:44] RelProcTime:...
Hello, Tyler! ... Yes, this is normal. As you come closer to required number of relations procrels seems to drop number of collected relations. I do not...
... That's hard! I hope you mean a SNFS factorization. When NFSNET factored a C234 ( 3^491+1 ) they used factorbases of 50 million on each side with Large...
... OK. Assuming SNFS you could use something like snfs,232,6,0,0,0,0,0,0,0,0,50000000,50000000,30,30,58,58,3.0,3.0,2500000 which is 50M factorbases, 30 bit...
Hello, my name is Alex. I study A Number Field Sieve (NFS) implementation and want to ask you some questions. First of all, about nfs_sparse_mat_t: typedef...
When i launch FactLat.pl c232.n i have this error ! And my number have 232 digits !!!! -> Attempting to run polyselect... -> Selected default polsel parameters...
... snip ... It looks like the polynomial selection program doesn't like numbers that large. Either that or it requires different parameters. But if you need...
You are trying to use GNFS on a C232? This wouldn't be RSA-768 now would it? The largest GNFS factorization to date is RSA-576, with 174 digits. A C232 is...
I want to user SNFS to factore this number, but when i put in .N file (type: snfs) FactLat select GNFS ! I Must Create directely a poly's file ? ... 174 ... ...
I launch to factor c232, and when he sieve i have it : FBsize 1566791+0 (deg 6), 3001133+0 (deg 1) total yield: 0, q=25000033 (1.#INF0 sec/rel) total yield: 0,...
... To use SNFS, you will need a simple polynomial for the number, and you will need to create manually a c232.poly file, yes. I don't think specifying "type:...
... Nope, that's not normal... that indicates you'll have to find a better polynomial or fiddle with the parameters a bit, since the lattice siever is finding...
... From all your previous questions it seems that you're new to NFS. May i suggest that you start with some smaller factorizations first, to get an idea how...
Hello, As Sander has remarked already, you should try some smaller numbers first to learn the software. To do a number this large, you will also HAVE to learn...
Hi Alex, Do a search through the messages on this group for nfs_sparse_mat_t - there might be 15 or 20 posts that you'll have to scan through, but the answers...
In the (original?) Franke lattice sieve, one can must choose either the option -a to sieve the alg. side or the option -r to sieve the rational side. I'm...
Hi Jes, Once upon a time, I think this option was in the bash script, but didn't make it over to the Perl script. However, it surely should be an option, so I...
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