C Program to check if a number is Palindrome or not

Published on December 18, 2016 by admin

Filed under C

Last modified December 18, 2016

Print this page

rate 1 star rate 2 star rate 3 star rate 4 star rate 5 star
Your rating: none, Average: 0 (0 votes)

This article have been viewed 15211 times


Write a program in C to check whether a given number is a palindrome or not.

How to find if the number is a palindrome or not in C ?

A palindrome is a number where the reverse of a number is equal to the original number. Here’s a program in C demonstrating how to do it.

#include <stdio.h>
int main()
    int input, reverseNumber = 0, remainder, initialNumber;
    printf("Abundantcode.com coding sample\n");
    printf("Enter a number: ");
    scanf("%d", &input);

    initialNumber = input;
    while( input!=0 )
        remainder = input%10;
        reverseNumber = reverseNumber*10 + remainder;
        input /= 10;

    if (initialNumber == reverseNumber)
        printf("%d is a palindrome.", initialNumber);
        printf("%d is not a palindrome.", initialNumber);
    return 0;


Abundantcode.com coding sample

Enter a number: 121

121 is a palindrome.

Leave a Comment


You might be Interested in these Posts

C Program to convert lower case string to upper case

Problem Statement Write a program in C to convert the given string from lower case to upper case. ...

How to decode a base64 string in C#?

Here's a sample code snippet demonstrating how you can easily decode a base64 encoded string in C#. ...

How to disable editing of items in a combo box in c#?

When working in Win forms using C# and especially when you use the combo box , you would have notice...