> For the complete documentation index, see [llms.txt](https://mayanktyagi3111.gitbook.io/interview-prep/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mayanktyagi3111.gitbook.io/interview-prep/maths/all-factors.md).

# All Factors

Given a number N, find all factors of N.

**Example:**

```
N = 6 
factors = {1, 2, 3, 6}
```

Make sure the returned array is sorted.

```java
public class Solution {
    public int[] allFactors(int x) {
        ArrayList<Integer> arr = new ArrayList<>();
        for(int i =1;i*i<=x;i++) {
            if(x%i==0) {
                arr.add(i);
                if(i*i != x)
                    arr.add(x/i);
            }
        }
        int ans[]= new int[arr.size()];
        for(int i =0;i<ans.length;i++)
            ans[i]= arr.get(i);
        Arrays.sort(ans);
        return ans;
    }
}

```