Q: Is 21,156,764 a Palindrome?
A: No, the number 21,156,764 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:
21156764
Now we reverse it like this:
46765112
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 21156764 = 46765112?
Answer:
NO, so that means the number 21,156,764 is not a palindrome!
Here are more examples of potential palindrome numbers in sequence:
| Number | 21,156,762 | 21,156,763 | 21,156,765 | 21,156,766 |
| Palindrome? | no | no | no | no |