Q: Is 22,400,421 a Palindrome?
A: No, the number 22,400,421 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:
22400421
Now we reverse it like this:
12400422
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 22400421 = 12400422?
Answer:
NO, so that means the number 22,400,421 is not a palindrome!
Here are more examples of potential palindrome numbers in sequence:
| Number | 22,400,419 | 22,400,420 | 22,400,422 | 22,400,423 |
| Palindrome? | no | no | yes | no |