# C Program to Print First N Even Natural Numbers

In this tutorial, i am going to show you how to print first n (10, 100, 1000 .. N) even natural numbers in the c program using for loop and while loop

## Algorithm and Program to Print First N Even Natural Numbers in C

• Algorithm to Print First N Even Natural Numbers
• C Program to Print First N Even Natural Numbers using For Loop
• C Program to Print First N Even Natural Numbers using While Loop

### Algorithm to Print First N Even Natural Numbers

Follow the below given algorithm to write a program to find and print first n(10, 100, 1000 .. N) even natural numbers:

• Step 1: Start Program.
• Step 2: Read the a number from user and store it in a variable.
• Step 3: Find first n even natural number using for loop or while loop.
• Step 4: Print first n even natural number.
• Step 5: Stop Program.

### C Program to Print First N Even Natural Numbers using For Loop

```#include <stdio.h>
void main()
{
int i,n;
printf("Input number of terms : ");
scanf("%d",&n);
printf("\nThe even numbers are :");
for(i=1;i<=n;i++)
{
printf("%d ",2*i);
}
} ```

The result of the above c program; as follows:

```Input number of terms : 5
The even numbers are :2 4 6 8 10```

### C Program to Print First N Even Natural Numbers using While Loop

```#include <stdio.h>
void main()
{
int i,n;
printf("Input number of terms : ");
scanf("%d",&n);
printf("\nThe even numbers are :");

i = 1;
while (i <= n)
{
printf("%d ", 2 * i);
i++;
}
} ```

The result of the above c program; as follows:

```Input number of terms : 5
The even numbers are :2 4 6 8 10 ```

Categories C