On Jun 18, 2014 2:22 AM, "Dima Pasechnik" <dimp...@gmail.com> wrote: > > On 2014-06-18, John Cremona <john.crem...@gmail.com> wrote: > > I noticed an announcement on the flint-dev list which led me to try > > this, and indeed we have the bug: > > > > sage: n=2007193456621 > > sage: n.is_prime() > > False > > sage: n.factor() # !!!!!!!!!! > > 2007193456621 > > sage: pari(n).factor() > > [1001797, 1; 2003593, 1] > > sage: n == 1001797 * 2003593 > > True > > > > See flint-dev for more details, but this seems serious enough to > > report here too. I do not understand why Sage fails to factor n since > > the documentation says that pari is the default, and pari can factor > > before resorting to calling pari, some supposedly fast things > are tried (just have a look at n.factor??) > So one of these things fails. > > There are further annoyign things here: > proof=None in the parameters while the docstring says that the > default is proof=True >
Proof=none means "honor the global proof object settings", which defaults to true. > n.factor(proof=True) still returns > 2007193456621 > > > -- > You received this message because you are subscribed to the Google Groups "sage-devel" group. > To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. > To post to this group, send email to sage-devel@googlegroups.com. > Visit this group at http://groups.google.com/group/sage-devel. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
