This post is in celebration of Husband’s 13th palindrome birthday – and 4th non-trivial palindrome birthday. Happy birthday, Judson!
When was the last time you had a palindrome birthday? When is your next one?
And what is a palindrome birthday, anyway?
A palindrome is a number or word that reads the same forward and backwards.
Some of the simple word palindromes are mom, dad, radar and racecar.
Palindrome numbers include 101 and 128,393,821.
So a palindrome birthday is an age that’s a palindrome – like 22.
You start with 9 palindrome birthdays.
In the first nine years of your life you have palindrome birthdays. But they’re pretty lame because they’re single digits.
The age 7 reads the same forward as backward. It’s a palindrome by default.
We call it a trivial palindrome.
You have more real palindrome birthdays.
After you turn double digits, you have a palindrome birthday every 11 years. Until you get really, really old.
Then you go from 99 years old to 101.
Which is the least number of years between palindrome birthdays since you were a kid.
You can have pseudo-palindrome birthdays, too!
It’s no fun waiting 11 years until you can celebrate your next palindrome birthday. So why not celebrate your pseudo-palindrome birthdays?
Those would be birthdays at ages like 32.3 and 54.5.
They’re kinda hard to figure out though. So I’ve created a spreadsheet in google drive to calculate your pseudo-palindrome birthday for you!
Open it, put in your birthday and hit enter. You’ll see the dates change to show your various pseudo-palindrome birthdays.
If you prefer, you can download a copy for Excel.
What’s your next palindrome birthday? Will you be able to use this in your classroom?
Share in the comments!
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