diff --git a/Chapter 6/Exercise 6.6 b/Chapter 6/Exercise 6.6
new file mode 100644
index 0000000..c891f33
--- /dev/null
+++ b/Chapter 6/Exercise 6.6	
@@ -0,0 +1,10 @@
+function calcFactorial(nr) { 
+    console.log(nr);
+    if (nr === 0) { 
+        return 1; 
+    } 
+    else { 
+        return nr * calcFactorial(--nr); 
+    } 
+} 
+console.log(calcFactorial(4));