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<!DOCTYPE html>
<html>
<body>
<p>Infinity is returned if you calculate a number outside the largest possible number.</p>
<button onclick="myFunction()">Try it</button>
<p id="demo"></p>
<script>
function myFunction() {
  var myNumber = 2; 
  var txt = "";
  while (myNumber != Infinity) {
    myNumber = myNumber * myNumber;
    txt = txt + myNumber + "<br>";
  }
  document.getElementById("demo").innerHTML = txt;
}
</script>
</body>
</html>