Palindromes

Palindromes are achiral words, such as:

  • nun
  • madam
  • pop

Or achiral phrases (once spaces and punctuation are removed, by convention) such as these famous examples:

  • Nurses, run!
  • Madam, I'm Adam!
  • A man, a plan, a canal: Panama!

Or achiral sequences, such as a palindromic gene segment:

  • GATTATATTAG

Or numbers:

  • 123454321

Try this one out...

  • 11 x 11 = 121
  • 111 x 111 = 12321
  • 1,111 x 1,111 = 1234321
  • 111,111,111 x 111,111,111=12345678987654321

(...what happens when we get past a nine digit number?)

External references