Sum of digits of a number in c

• To find sum of digits of a number in c , we need to get individual numbers and add those numbers.
• First of all read a number from user using scanf.
• Using while loop get individual number 
• Divide the number with 10 so we will get last digit of that number as remainder , once we get that last digit then add it to one variable and divide that number with 10 so it will become one digit less.
• like this we can get all digits and add all those numbers to get sum of digits 
• Sum of individual digits in c program
• c program to find sum of digits of a 3 digit number

correction: here n =number .

# program to find sum of digits of a number in c

1. #include<stdio.h> // include stdio.h
2. //c program to find sum of digits of a number using while loop
3. //write a program to find sum of digits of a number
4. //www.instanceofjava.com
5. int main()
6. {
7.     // declare variables 
8.     int number, remainder, sum = 0;
9.     //read input from user 
10.     printf("Enter a number: ");
11.     scanf("%d", &number);
12. 
    
13.    //iterate until number not equal to zero
14.    // get individual digits and add all those digits to get sum
15.     while(number != 0)
16.     {
17.         remainder = number % 10;
18.         sum += remainder;
19.         number = number / 10;
20.     }
21.   //print sum of digits in c
22.     printf("sum = %d", sum);
23. 
    
24.     getch();
25. }

Output:

1. Enter a number
2. 123
3. sum = 6