There are many ways of calculating the value of e, but none of them ever give a totally exact answer, because e is irrational and its digits go on forever without repeating. But it is known to over 1 trillion digits of accuracy! For example, the value of (1 + 1/n) n approaches e as n gets bigger and bigger:

The value of e has been calculated to more decimal places than the average person cares about - in 1978 Steve Wozniak used an Apple computer to obtain the first 116,000 digits following the decimal point. In 2020, the record was 31,415,926,535,897 decimal places. For the sake of it, here is e, written to 50 decimal places:

This multiple choice quiz and printable worksheet involves understanding the value of e and calculations that are applied with the value. The assessment will challenge your knowledge on ...

The number e is the value of the exponential function evaluated at =, or equivalently, the number whose natural logarithm is 1. It follows that e is the unique positive real number such that =

The true value of e is a number that never ends. Euler himself gave the first 23 digits of e. The number e has great importance in mathematics, as do 0, 1, π , and i .