diff --git a/Simple Recursive/Nth Factorial/README.md b/Simple Recursive/Nth Factorial/README.md
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+# nth Factorial
+Finding nth Factorial using recursion.
+
+## Complexity
+* **Time**: )
+* **Space**: )
+
+## References
+* [codeburst.io](https://codeburst.io/learn-and-understand-recursion-in-javascript-b588218e87ea)
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diff --git a/Simple Recursive/Nth Factorial/code.js b/Simple Recursive/Nth Factorial/code.js
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+// import visualization libraries {
+const { Tracer, Array1DTracer, Layout, VerticalLayout } = require('algorithm-visualizer');
+// }
+
+// define tracer variables {
+var tracer = new Array1DTracer('Sequence');
+Layout.setRoot(new VerticalLayout([tracer]));
+var index = 15;
+var D = [1];
+for (var i = 1; i < index; i++) {
+ D.push(0);
+}
+tracer.set(D);
+Tracer.delay();
+// }
+
+function fact(num) {
+ if (num < 0) {
+ return;
+ }
+
+ if (num === 0) {
+ return 1;
+ }
+
+ var res = num * fact(num - 1);
+
+ D[num - 1] = res;
+
+ // visualize {
+ tracer.select(num - 1);
+ Tracer.delay();
+ tracer.patch(num - 1, D[num - 1]);
+ Tracer.delay();
+ tracer.depatch(num - 1);
+ tracer.deselect(num - 1);
+ // }
+
+ return res;
+}
+fact(index);
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