[seqfan] Re: Special primes

[Ami Eldar]

Primes with all their digits being 9's, except for a single 8 digits are
called "Glitch Prime".
See the Numberphile video "Glitch Primes and Cyclops Numbers" at
https://www.youtube.com/watch?v=HPfAnX5blO0
and also: https://brilliant.org/problems/glitch-prime/




On Sun, Mar 3, 2019 at 10:04 PM Antreas Hatzipolakis <anopolis72 at gmail.com>
wrote:

> It is said that this number is prime
>
> 999999999999999999999999
> 999999999999999999999999
> 999999999999999999999999
> 999999999999999999999999
> 999999999999999999999999
> 999999999999999999999999
> 999999999999999999999999
> 999999999999999999999999
> 999999999999999999999999
> 999999999999999999999999
> 999999999999*8*99999999999
> 999999999999999999999999
> 999999999999999999999999
> 999999999999999999999999
> 999999999999999999999999
> 999999999999999999999999
> 999999999999999999999999
> 999999999999999999999999
> 999999999999999999999999
> 999999999999999999999999
> 999999999999999999999999
> 99
>
> Have these primes a name? And are there infinitely many of that kind?
>
> APH
>
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