id summary reporter owner description type status priority milestone component resolution keywords cc merged author reviewer upstream work_issues branch commit 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 closed minor sage-6.9 factorization fixed sd32, sd40.5 AlexGhitza cremona rlm jpflori Paul Zimmermann Mike Hansen, Frédéric Chapoton, Jean-Pierre Flori N/A 4a59cea09beb2c169e73bc3cc55da73843cde4d1