This site is mobile accessible. Press the "Tap Here" button to use a smaller font-size.

Smartphone icons created by Freepik - Flaticon

JavaScript Numbers

Infinity is returned if you calculate a number outside the largest possible number:

let myNumber = 2; 
let txt = "";
while (myNumber != Infinity) {
   myNumber = myNumber * myNumber;
   txt = txt + myNumber + "<br>";
}
document.getElementById("demo").innerHTML = txt;