# C Program To Add Digits Of A Number

**C Program To Add Digits Of A Number**. If you are looking find sum of the digits of a number program in C, here in this tutorial we will help you to learn how to write a C program to compute sum of digits in a given number.

## C Program to Add Digits of a Number

Learn how to write a C program to find sum of digits of a number. Writing **C Program to add digits of a given number** can be done using various techniques but here in this program, we show how to write a C program to find sum of digits of a number using while loop in a proper way.

### How do you find the sum of digits in C?

If a user enters a number 1234, then we have to write a **logic to calculate **sum** of the digits** of 1234. That is 1 + 2 + 3 + 4 = 10. The program should read the individual digits and then it should add digits and print sum of the digits in a given number.

### C Program to Compute Digits of a Number Source Code

Just copy paste the below source code to **find **sum** of the digits of a number** in C compiler to test, how the source code works. Happy Learning.

/*C program to add digits of a number- AddDigits.C */ #include <stdio.h> void main() { long num, temp, digit, sum = 0; printf("Enter the number to find sum of the digits: \n"); scanf("%ld", &num); temp = num; while (num > 0) { digit = num % 10; sum = sum + digit; num /= 10; } printf("Given number is = %ld\n", temp); printf("Sum of the digits of %ld = %ld\n", temp, sum); }

### C Program to Find Sum of Digits of a Number Output

Run the above **program to add digits of a given number** to print sum of digits. For this enter a number to check, the c compiler will execute the logic and display the sum of the digits of a number.

**Output:**

Enter the number to find sum of the digits: 1234

Given number is = 1234

Sum of the digits of 1234 = 10

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