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tr00per92

04-isPrime

Jul 15th, 2014
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  1. function isPrime(num) {
  2.     for (var i = 2; i <= Math.sqrt(num); i++) {
  3.         if (num % i == 0) {
  4.             return false;
  5.         }
  6.     }
  7.     return true;
  8. }
  9. console.log(isPrime(7));
  10. console.log(isPrime(254));
  11. console.log(isPrime(587));
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