it looks like that code will suffice. Thanks!! On Mar 23, 9:38 pm, Per Vognsen <per.vogn...@gmail.com> wrote: > I'm sure that code would be useful if he were looking for a slow > implementation of a slow algorithm. I believe he asked for an > optimized algorithm. An example might be Lenstra's elliptic curve > factorization or the general number field sieve. I don't know of any > implementations in Clojure but there seem to be a few floating around > in Java. > > -Per > > On Wed, Mar 24, 2010 at 3:35 AM, kotor <cnbe...@netscape.net> wrote: > > On Mar 23, 1:02 pm, Glen Rubin <rubing...@gmail.com> wrote: > >> Does anyone know of any existing libraries for clojure that has code > >> which is optimized to list all of the factors of any given integer? > > > (defn factors [x] > > "integer -> vector[integers]" > > (loop [xf [] i 2] > > (if (> (* i i) x) > > (vec (sort (distinct xf))) > > (if (zero? (rem x i)) > > (recur (conj xf i (/ x i)) (inc i)) > > (recur xf (inc i)))))) > > > -- > > You received this message because you are subscribed to the Google > > Groups "Clojure" group.> To post to this group, send email > > tocloj...@googlegroups.com > > Note that posts from new members are moderated - please be patient with > > your first post. > > To unsubscribe from this group, send email > > to>clojure+unsubscr...@googlegroups.com > > For more options, visit this group at > >http://groups.google.com/group/clojure?hl=en > > > To unsubscribe from this group, send email to > > clojure+unsubscribegooglegroups.com or reply to this email with the words > > "REMOVE ME" as the subject.
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