Perfect numbers: Difference between revisions

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@@ Line 986: / Line 986: @@
   return chain(
     rng(nFrom, nTo),
-    function (x) {
+    function mPerfect(n) {
-      return (
+      return (chain(
-        function perfect(n) {
+        rng(1, Math.floor(Math.sqrt(n))),
-          return chain(
+        function (y) {
+          return (n % y) === 0 && n > 1 ? [y, n / y] : [];
-            rng(1, Math.floor(Math.sqrt(n))),
-            function (y) {
-              return (n % y) === 0 && n > 1 ? [y, n / y] : [];
-            }
-          ).reduce(function (a, x) {
-            return a + x;
-          }, 0) / 2 === n;
         }
-      )(x) ? [x] : [];
+      ).reduce(function (a, x) {
+        return a + x;
+      }, 0) / 2 === n) ? [n] : [];
     }
   );