BRUTE FORCE APPROACH
IntuitionApproachComplexity
Time complexity:

Space complexity:
Code
# Intuition
<!-- Describe your first thoughts on how to solve this problem. -->

# Approach
<!-- Describe your approach to solving the problem. -->

# Complexity
- Time complexity:
<!-- Add your time complexity here, e.g. $$O(n)$$ -->

- Space complexity:
<!-- Add your space complexity here, e.g. $$O(n)$$ -->

# Code
```java []
class Solution {
    public String convertToBase7(int num) {
        int temp = num;
        int sign = 0;
        String ans = "";
        if(num < 0){
            temp = -num;
            sign = 1;
        }
        while(temp >= 7){
            ans = (temp % 7) + ans ;
            temp  = temp / 7 ;
        }
        ans = temp + ans;
        if(sign == 0){
            return ans;
        }
        else{
            ans = "-" + ans;
            return ans;
        }                   
    }
}
```
['Java']