Sum Of Digits Program In C

To get sum of each digits by c program, use the following algorithm:

• ✅ Step 1: Get number by user
• ✅ Step 2: Get the modulus/remainder of the number
• ✅ Step 3: sum the remainder of the number
• ✅ Step 4: Divide the number by 10
• ✅ Step 5: Repeat the step 2 while number is greater than 0.

Let's see the sum of digits program in C.

Example

#include<stdio.h>

 int main()  

{  

int n,sum=0,m;  

printf("Enter a number:");  

scanf("%d",&n);  

while(n>0)  

{  

m=n%10;  

sum=sum+m;  

n=n/10;  

}  

printf("Sum is=%d",sum);  

return 0;

}

Output:

Enter a number:654

Sum is=15



Enter a number:123

Sum is=6