Q: Is 21,007,218 a Palindrome?
A: No, the number 21,007,218 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:
21007218
Now we reverse it like this:
81270012
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 21007218 = 81270012?
Answer:
NO, so that means the number 21,007,218 is not a palindrome!
Here are more examples of potential palindrome numbers in sequence:
| Number | 21,007,216 | 21,007,217 | 21,007,219 | 21,007,220 |
| Palindrome? | no | no | no | no |