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))))))
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