diff --git a/src/functions/factorial.ts b/src/functions/factorial.ts
index 52656df..d1cb514 100644
--- a/src/functions/factorial.ts
+++ b/src/functions/factorial.ts
@@ -22,6 +22,18 @@ solution
  * Provide your solutions below
  */
 
+solution
+  .owner('hasangenc')
+  .method('While loop')
+  .fn(function factorial(n): number {
+    let b = 1;
+    while (n > 1) {
+      b *= n--;
+    }
+
+    return b;
+  });
+
 solution
   .owner('acanguven')
   .method('Recursive')