# [ExI] > Taiwan is standing strong

John Clark johnkclark at gmail.com
Thu Mar 19 11:02:50 UTC 2020

```On Wed, Mar 18, 2020 at 8:47 PM spike jones via extropy-chat <
extropy-chat at lists.extropy.org> wrote:

>…but I did learn something new. This formula (1+9^-4^6*7)^3^2^85 is
>> interesting for 2 reasons, the first is it uses every integer from 1 to 9,
>> the second reason is that it works out to be 2.718281828459..., if you say
>> that's Euler's constant then you be *almost* correct but not quite, the
>> formula is not exact, it's only a good approximation of e. How good an
>> approximation? Pretty good, it only starts to go bad afer 18 trillion
>> trillion digits!   John K Clark
>
>
> *> That is indeed cool but I have trouble finding how it is good to 18
> trillion digits*.
>

It's good for 18 trillion TRILLION digits, only after that does it deviate
from e.

Incredible Formula - Numberphile

Stay Healthy.

John K Clark
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