Q: Is 400,240,646 a Palindrome?
A: No, the number 400,240,646 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:
400240646
Now we reverse it like this:
646042004
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 400240646 = 646042004?
Answer:
NO, so that means the number 400,240,646 is not a palindrome!
Here are more examples of potential palindrome numbers in sequence:
| Number | 400,240,644 | 400,240,645 | 400,240,647 | 400,240,648 |
| Palindrome? | no | no | no | no |