Javascript Number isPrime(n)

// PROBLEM ////from w  w  w  . ja va 2s .c o  m

/*
Using the JavaScript language, have the function PrimeTime(num) take the num
parameter being passed and return the string true if the parameter is a prime
number, otherwise return the string false. The range will be between 1 and 2^16.
*/

// HELPERS //

Number.prototype.isPrime = function() {
  for (var n = 2; n < this;)
    if (!(this % n++))
      return !1;
  return !0
}

// ANSWER //

function PrimeTime(num) {
  return num.isPrime();
}

PrimeTime(readline());