RosettaCodeData/Task/Perfect-numbers/PicoLisp/perfect-numbers-2.l
2023-07-01 13:44:08 -04:00

7 lines
177 B
Text

(de faster (N)
(let (C 1 Stop (sqrt N))
(for (I 2 (<= I Stop) (inc I))
(and
(=0 (% N I))
(inc 'C (+ (/ N I) I)) ) )
(= C N) ) )