Science quiz
Digits of e
Euler's number starts 2.71828. Type the digits that follow the decimal point, one at a time. A single wrong digit ends the run.
- Format
- Type them all
- Items
- 100 answers
- Limit
- 5:00
- Level
- Hard
- Checked
- 2026.10.03
- Answers
- 100
- Time limit
- 5:00
- Order
- One at a time, no skipping
- Matching
- One key per answer
- Minefield
- One wrong answer ends it
- Answer each item in turn; the next appears when you get it right.
- Every key press counts.
- Pause whenever you like (Esc). The board hides while the clock is stopped.
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About this quiz
The number e, about 2.718, is the base of natural logarithms. It is the sum of 1/0! + 1/1! + 1/2! + 1/3! and so on for ever, and its digits never settle into a repeating pattern.
- After 2.7, the digits 1828 appear twice in a row: 2.718281828.
- The digits that follow are 45, 90, 45: 2.718281828459045.
- The first zero does not appear until the 13th decimal place.
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