JSFiddle - React, Tailwind, and code Playground

JavaScript

var numberInQuestion = prompt("Of what number are you wanting to find the factors of?");

//determine factors
function factors(numberInQuestion){
    var factorsArray = [];
    for (var i = 2; i < numberInQuestion-1; i++){
        if(numberInQuestion % i === 0){
            factorsArray.push(i);
        }
    }
    return factorsArray;
};
var result = factors(numberInQuestion);
alert(result);