PrimeChecker.js

let numbers = [];
const total = 999999;

function createPrime() {

  numbers[0] = 0;
  numbers[1] = 0;
  numbers[2] = 1;

  const sqRt = parseInt(Math.sqrt(total));

  for(let i = 3; i < total; i += 2) {
    numbers[i] = 1;
  }

  for(let i = 4; i < total; i += 2) {
    numbers[i] = 0;
  }


  for(let i = 3; i < sqRt; i +=2 ){
    for(let j = i * i; j < total; j += i){
      numbers[j] = 0;
    }
  }
}

createPrime();
function isPrime(number) {
  if(numbers[number] == 1){
    console.log("Yes Its Prime");
  }else{
    console.log("Nope Its Not a Prime");
  }
}

isPrime(111114)