Q: Is 131,721,645 a Palindrome?
A: No, the number 131,721,645 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:
131721645
Now we reverse it like this:
546127131
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 131721645 = 546127131?
Answer:
NO, so that means the number 131,721,645 is not a palindrome!
Here are more examples of potential palindrome numbers in sequence:
| Number | 131,721,643 | 131,721,644 | 131,721,646 | 131,721,647 |
| Palindrome? | no | no | no | no |