C Program to find the sum of N Natural Number

In this section you will learn how to write the C Program to find the sum of N Natural Number.

For Eg. Find the sum of first 5 natural number

1+2+3+4+5 = 15

Now lets see the C Program to find the sum of N Natural Number

Program

/* Exp No 3: display natural number and find sum */

#include <stdio.h>

int main()
{
   int n,i,sum=0;
   printf("Enter How many terms to be display\n");
   scanf("%d",&n);
   /* display series and find sum */
   for(i=1; i<=n; i++)
   {
      printf("%4d",i);
      sum = sum+i;
   }
   printf("\n Sum of natural number = %d \n",sum);
   return 0;
}

Output :-

 

Image of sum of N natural number

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