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 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.
