PrimeNumber.js

exports.handler = (event, context, callback) => {
    console.log("event :",event);
    var status = "";
    
    var num = Number(event.currentIntent.slots.Integer);
    status = status.concat(num);
    console.log("number :", num);
    if (num < 1){
        status = "Please enter a positive number.";
    }else {
        var square_root = Math.sqrt(num);
        var prime = true;
        if (num === 1){
            prime = false;
        } else {
            for (var i = 2; i <= square_root; i++){
                if (num % i === 0){
                    prime = false;
                    break;
                }
            }
        }
    }
    
    if (!prime){
        status = status.concat(" is not a prime number");
    } else {
        status = status.concat(" is a prime number");
    }
    
    
    callback(null, {
        "dialogAction": {
          "type": "Close",
          "fulfillmentState": "Fulfilled", // <-- Required
          "message": {
            "contentType": "PlainText",
            "content": status
          }
        }} );
};