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Program to check whether a number is Palindrome or not
Here we will discuss how to check whether a number is palindrome or not using C++ Programming language.
A number is a Palindrome number if the reverse of the number and the numbers itself are equal i.e. if number and its reverse are same then the number is a palindrome number.
Example: Let’s take a number say 2876. Here the reverse of the number is 6782 which is not equal to the number so 2876 is not a palindrome number.
Let’s take another number say 12121. Here the reverse of the number is 12121 which is equal to the number, so 12121 is a Palindrome number.To check for palindrome number we will first reverse the number using a loop and then compare them number and its reverse using the if statement.




Algorithm:-
- Take integer number as input and store it in num
- store copy of num in temp
- we have to extract the digits of number using Modulus % operator
- reverse intialized to 0
- A do while loop is started
- unit digit is extracted and stored in rem
rem=num%10;
- We have to shift the reverse to left by multiplying by 10 and add remainder to it
reverse=reverse*10+rem;
- num is divided by 10 and the value is stored in num itself.
num/=10;
- The loop works until num is not equal to 0.
while(num!=0);
5. reverse is printed as output as it is the reverse of the number entered by the user.
6. if temp==reverse print number is palindrome otherwise number is not palindrome
C++ Code:-
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