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Mind-Bending Math & GamesNumbers

Find Your Birthday in Pi

Pi's endless digits almost certainly hide every date

Somewhere in the digits of pi sits your birthday. And your phone number, probably. How can one number have room for everybody?

You'll find out

  • Where your own birthday is hiding
  • What a million digits look like
  • What nobody has managed to prove

Why it matters

Pi is in every circle, wheel and wave. Its digits are also the playground of one of math's great open questions.

About 3 min6 interactive slides · 5 questionsLesson 120 · Zone 14

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