id,summary,reporter,owner,description,type,status,priority,milestone,component,resolution,keywords,cc,work_issues,upstream,reviewer,author,merged,dependencies,stopgaps
10951,ecmfactor should take as optional argument the sigma value,zimmerma,tbd,"I suggest the {{{ecmfactor}}} function takes as optional argument a sigma
value, which would be passed to GMP-ECM. In case of a successful
factorization, this would allow to know the lucky curve, for
example to report it on some tables of records.

For example I found a 61-digit prime factor using {{{ecmfactor}}},
but was unable to know the lucky sigma
(http://www.loria.fr/~zimmerma/records/ecmnet.html).

Alternatively, one could store the (random) sigma value chosen by
GMP-ECM if not sigma was given, but that might be more difficult to
implement.
",enhancement,needs_work,minor,sage-5.11,factorization,,"sd32, sd40.5",AlexGhitza cremona rlm,"rebase, documentation",N/A,Mike Hansen,Paul Zimmerman,,,