LibraryNumbers with StoriesOne card

A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

Math & LogicOne small ahaNumber

These numbers read identically forwards and backwards, such as 121 and 1331.

Think it. Then flip it.
ahamoraTap to reveal
Back to the cue
Math & LogicOne small aha
Your new ahaPalindromic Numbers

Palindromic Numbers: Numbers that read the same forwards and backwards. Source: Palindromic number

ahamoraReference ↗

Keep the thread going

One answer is a beginning.

Share a little curiosity, or follow it into the full collection.

Flip the full deck →

More from Numbers with Stories

A few more worth knowing.

  1. 09This mathematical concept represents the unbounded and endless, and is not treated as an ordinary number in arithmetic.RECALL
    Infinity

    Infinity represents the unbounded and endless, and is not treated as an ordinary number in arithmetic.

    Open this card ↗
  2. 10This number is one followed by a hundred zeros and inspired Google's name.RECALL
    Googol

    A googol, one followed by a hundred zeros, inspired the name of the technology company Google.

    Open this card ↗
  3. 11These numbers are real multiples of i, whose square is −1.RECALL
    Imaginary Numbers

    Imaginary numbers, built from the square root of negative one, prove essential in engineering and quantum physics.

    Open this card ↗