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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>