Untitled

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
</head>
<body>

<script id="jsbin-javascript">
function factorial(num){
	var result = 1;

	for (var i = 2; i <= num; i++){
		result *= i;
	}
	return result;
}
</script>


<script id="jsbin-source-javascript" type="text/javascript">
function factorial(num){
	var result = 1;

	for (var i = 2; i <= num; i++){
		result *= i;
	}
	return result;
}</script></body>
</html>