C Program to Print Even Numbers between 1 to 100 using For and While Loop

• Write a C program to print even numbers between 1 to 100 using for and while loop.  
• Write a C program to print even numbers between 1 to N. 

In this tutorial, we are going to write a c program which prints even numbers between 1 to 100. In another example, we write a c code which prints even numbers between 1 to N (N is an input number by a user).

What is Even Numbers?

An even numbers are those numbers which is exactly divided by 2.

For example - 2, 4 , 6 etc. are even numbers.

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C Program to Print Even Numbers from 1 to N

#include <stdio.h>

int main(void) {
 
   int n;
 
   printf ("Enter a number \n");
   scanf ("%d", &n);
 
   printf ("Even numbers from 1 to %d is : ",n);
 
   for (int i = 1; i <= n; i++) {
  
      if ( i % 2 == 0) {
   
          printf (" %d ", i);
      }
  
  }
 
 return 0;
}

C Program to Print Even Numbers between 1 to 100 using While Loop

#include <stdio.h>

int main() {
 
     int i=1;

     /* Run a loop from 1 to 100 */
     while( i <= 100) {
  
      /* If number is divisible by 2
         then it's an even number
      */
  
      if(i % 2 == 0){
   
        printf(" %d ", i);
      }
  
        /* Increment i. */
  
        i++;
     }
    
    return 0;
}

Output -

2  4  6  8  10  12  14  16  18  20  22  24  26  28  30  32  34  36  38  40  
42  44  46  48  50  52  54  56  58  60  62  64  66  68  70  72  74  76  78  
80  82  84  86  88  90  92  94  96  98  100 

C Program to Print Even Numbers between 1 to 100 using For Loop

#include <stdio.h>

int main() {
 
     /* Run a loop from 1 to 100 */
    for(int i = 1; i <= 100; i++) {
  
      /* If number is divisible by 2
         then it's an even number
      */
        if(i % 2 == 0){
   
           printf(" %d ", i);
        }
    }
    
    return 0;
}