<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<script>
let output =1;
for (let i = 1; i <= 100; i++) {
output *= i;
}
document.write(`1 ~ 100까지의 숫자를 모두 곱하면, ${output}입니다.`);
</script>
</body>
</html>