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GeezerVison is showing github.com — algorithms/java/Prime.java at master · lntutor/algorithms Expand file tree/ Copy pathPrime.javaMore file actions 23 lines (21 loc) · 371 Bytes / Copy pathPrime.javaFile metadata and controls23 lines (21 loc) · 371 Bytes 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 public class Prime { public static boolean isPrime(int number) { if (number <=1) { return false; } else if (number <=3) { return true; } else if (number%2==0) { return false; } else { int sqrt = (int) Math.sqrt(number) + 1; int i = 3; while (i<sqrt) { if (number % i ==0) { return false; } i+=2; } } return true; } } |
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