[seqfan] Re: Artur (by way of O. Gérard) Help Needed for factorization

[Hans Havermann]

> someone sent on the list about one year ago a link to a server where  
> I could do advanced prime factorization on a fast computer system,  
> but I cannot find the link again.
>
> Could someone send me the link again ?

http://www.alpertron.com.ar/ecm.htm


Regarding the specific factorization, I have:

13305602063564798744375818086912257107116341736236383610016981616248079279126427105233053103284238007262282978961283301626482919922623957738261145388496178542207872089147978745704465998932513624737073596625641298630135831189139031825789233810815679126355336635846328713839204459685713267042987 
  =

80191 * 97687 * 379081 * 227862073 * 3110690934667 *  
216892513252489863991753 * 1102099161075964924744009 *  
393063301203384521164229656203691748263012766081190297429488962985651210769817 
  *
67279611243545378609820986606981059291070958803567416300975280208969720124094621975097648465525841783790370819325540689688995549649 
  (composite)

It's still running the 131-digit composite (currently at curve 1075),  
but I have half a dozen other processes running on my 5-year-old  
machine, so others may well get something before I do.