In this program, You will learn how to find the sum of digits of a number in c.

`2341 => 2 + 3 + 4 + 1 = 10`

## Example: How to find the sum of digits of a number in c.

```
#include<stdio.h>
int main() {
int n, r, sum = 0;
printf("Enter a number:");
scanf("%d", &n);
while (n > 0) {
r = n % 10;
sum = sum + r;
n = n / 10;
}
printf("Sum of digits is:%d", sum);
return 0;
}
```

#### Output:

```
Enter a number:123
Sum of digits is:6
```