# C Program for Sum Of N Natural Numbers ## Find the Sum of N Natural Numbers in C

Given an integer input num, the objective is to write a code to find the Sum of N Natural Numbers in C. To do so we iterate and add all the numbers until num.

```Example:
Input : 5
Output : 1 + 2 + 3 + 4 + 5 = 15
```

### Algorithm

The Algorithm for the above problem is as follows,

• Step 1. Start
• Step 2. Enter a number (N).
• Step 3. Use “For loop” to iterate  upto the user inserted value.
• Step 4. The “For loop” will calculate the sum of the user inserted value.
• Step 5. Stop

Let’s try and understand it better using the Image given below.

### C Program for Sum Of N Natural Numbers

```#include <stdio.h>
int main()
{
//for initialize variable
int Number, i, Sum = 0;
//to take user input
printf ("\n Kindly Insert an Integer Variable\n");
scanf ("%d", &Number);

//use for loop for these condition
for(i = 1; i <= Number; i++)
{
Sum = Sum + i;
}

//display
printf ("Sum of Natural Numbers = %d", Sum);

return 0;
}
```

### Output

```Kindly Insert an Integer Variable : 3
Sum of Natural Numbers = 6
```

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