Art of Memory
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Memory Challenge: 100 Digits of Pi

Type the decimals of pi after 3, one digit at a time. Only the digit you just typed stays on screen, and one wrong digit ends the test. Reaching 100 passes.

Level 10 路 Expert

100 Digits of Pi

Type one digit at a time. Only the last one stays on screen, and one wrong digit ends the test.

  • 100 digits
  • About 4 minutes
  • Pass with all 100

No signup needed to play.

How to Remember 100 Digits of Pi

Digits are hard to remember because they mean nothing. Memory athletes turn every pair of digits into a picture with a number system, then place the pictures along a route.

Learn ten digits at a time, and say each block out loud until it comes back without looking.

For the method, read How to Memorize Pi.

Practise this list with Guess Pi and Pi Runner .

The Challenges

The easiest is first. Each one is harder than the last.

0 of 10 passed

  1. Level 1 路 Starter

    Letter Frequency

    12 letters 路 About 1 minute 路 pass at 10 of 12

    Badge: Quick Study

    Your next challengeTake the test: Letter Frequency

  2. Level 2 路 Starter

    Zodiac Signs in Order

    12 signs 路 About 2 minutes 路 pass with 2 mistakes or fewer

    Badge: Storyteller

    Take the test: Zodiac Signs in Order

  3. Level 3 路 Starter

    Backwards Alphabet

    26 letters 路 About 1 minute 路 pass by reaching A

    Badge: Rewind

    Take the test: Backwards Alphabet

  4. Level 4 路 Intermediate

    Canada's Provinces and Territories

    13 names 路 2 minutes 路 pass at 11 of 13

    Badge: Coast to Coast

    Take the test: Canada's Provinces and Territories

  5. Level 5 路 Intermediate

    The 50 U.S. States

    50 states 路 6 minutes 路 pass at 45 of 50

    Badge: State Sweep 路 Practice in US States and Capitals matching game

    Take the test: The 50 U.S. States

  6. Level 6 路 Intermediate

    U.S. State Capitals

    10 states a round 路 About 2 minutes 路 pass at 8 of 10

    Badge: Capital Finder 路 Practice in US States and Capitals matching game

    Take the test: U.S. State Capitals

  7. Level 7 路 Advanced

    U.S. Presidents in Order

    47 presidencies 路 About 4 minutes 路 pass with all 47

    Badge: Unbroken Chain 路 Practice in US Presidents Memory Game

    Take the test: U.S. Presidents in Order

  8. Level 8 路 Advanced

    Capitals of Europe

    10 countries a round 路 About 2 minutes 路 pass at 8 of 10

    Badge: Border Crosser 路 Practice in Capital Cannon

    Take the test: Capitals of Europe

  9. Level 9 路 Advanced

    The First 20 Elements

    20 elements 路 About 2 minutes 路 pass with all 20

    Badge: Lab Ready 路 Practice in Periodic Panic

    Take the test: The First 20 Elements

  10. Level 10 路 Expert

    100 Digits of Pi

    100 digits 路 About 4 minutes 路 pass with all 100

    Badge: Summit 路 Practice in Guess Pi or Pi Runner

    This challenge

The Answers

Show the answers

3. 1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679

See all the memory challenges.