Skip to main content

Learn: Major System

See the number. Recall the word. Tap to check. No peeking.

1 of 100
Jump to any number

See the number, picture the word, tap to check. Arrow keys also work.

The first 12 pairs cover the first four six-digit scenes of pi: 314159, 265358, 979323, 846264. Learn those 12 words and you have the story for the first 24 digits. Then add the next scene.
MemPi
Play on your next flight · works offline
Add PlayMemorize to your home screen
In Safari, tap Share , then choose “Add to Home Screen”.