Q: Is 21,355,257 a Palindrome?

 A: No, the number 21,355,257 is not a palindrome.

How is 21,355,257 not a palindrome number?

A palindromic number is number that remains the same when its digits are reversed.


Here's how to check if a number is a palindrome:


Step 1

Take the original number and reverse it.


Here is the original number color coded:

21355257

Now we reverse it like this:

75255312

Notice the colors are going in the opposite direction now


Step 2

Compare the two numbers. If they are exactly the same then the number is a palindrome.


Is 21355257 = 75255312?


Answer:

NO, so that means the number 21,355,257 is not a palindrome!


More Examples

Here are more examples of potential palindrome numbers in sequence:

Number 21,355,25521,355,25621,355,25821,355,259
Palindrome? nononono

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