Largest Factor of a Number

Factors.java

public class Factors {
  
  public static long factors(long n) {
        long max = 0;
        long d = 2;
        while (n > 1) {
            while (n % d == 0) {
                max = Math.max(max, d);
                n /= d;
            }
            d = d + 1;
            if (d * d > n) {
                if (n > 1) {
                    max = Math.max(max, n);
                }
                break;
            }
        }
        return max;
    }
    
}