Q: Is 21,571,780 a Palindrome?
A: No, the number 21,571,780 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:
21571780
Now we reverse it like this:
08717512
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 21571780 = 08717512?
Answer:
NO, so that means the number 21,571,780 is not a palindrome!
Here are more examples of potential palindrome numbers in sequence:
| Number | 21,571,778 | 21,571,779 | 21,571,781 | 21,571,782 |
| Palindrome? | no | no | no | no |