Q: Is 21,539,454 a Palindrome?
A: No, the number 21,539,454 is not a palindrome.
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:
21539454
Now we reverse it like this:
45493512
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 21539454 = 45493512?
Answer:
NO, so that means the number 21,539,454 is not a palindrome!
Here are more examples of potential palindrome numbers in sequence:
| Number | 21,539,452 | 21,539,453 | 21,539,455 | 21,539,456 |
| Palindrome? | no | no | no | no |