acbrent25
9/4/2017 - 4:33 PM

Prime Number Checker Write a function that checks to see if a number is a prime number or not. Have it return true if it is, or false if it

Prime Number Checker Write a function that checks to see if a number is a prime number or not. Have it return true if it is, or false if it isn't.

A Prime number is a number greater than one that can only be divided by one and itself.

app.js
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// Prime Checker: SOLUTION
// =======================

// Declare our primeCheck function
function primeCheck(number) {

  // Loop to check to see if a number has divisors other than one and itself.
  // Note: Loops from two to one less than the number we're checking.
  for (var i = 2; i < number; i++) {

    // If the number is evenly divisible
    // by a number between two and one less than itself,
    // then it is not prime.
    if (number % i === 0) {

      // So return false.
      return false;
    }
  }

  // A prime number has to be greater than one,
  // even if it has a divisor other than one and itself.
  return number > 1;
}
index.html
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<!DOCTYPE html>

<html lang="en-us">

  <head>

    <meta charset="UTF-8">

    <title>prime</title>

  </head>

  <body>

    <!-- Script -->
    <script src="app.js">
      </script>

  </body>

</html>