[seqfan] Re: both p -/+ 2 is prime power

[Neil Sloane]

The wikipedia is wrong. 1 = 7^0 IS a prime power. We have had this
argument before.

Best regards
Neil

Neil J. A. Sloane, President, OEIS Foundation.
11 South Adelaide Avenue, Highland Park, NJ 08904, USA.
Also Visiting Scientist, Math. Dept., Rutgers University, Piscataway, NJ.
Phone: 732 828 6098; home page: http://NeilSloane.com
Email: njasloane at gmail.com


On Sat, Oct 17, 2015 at 6:33 PM, Martin Møller Skarbiniks Pedersen <
traxplayer at gmail.com> wrote:

> On 17 October 2015 at 07:45, юрий герасимов <2stepan at rambler.ru> wrote:
>
> >
> > Dear SeqFans,
> >
> > Primes p such that both p - 2 and p + 2 is prime power: 3, 5, 7, 11, 29,
> > 241, 59051, .... What in the next ( > 5*10^8 ) one ?
> >
> > Best regards. JSG
> >
>
>
> Why 3 ? 3-2=1 is not a prime power accordring to the wikipedia prime power
> definition.
>
> /Martin
>
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