A peaceful and pleasant day in spite of Covid19
Quote:
Originally Posted by JeppeSN

I noticed that the factors of Mp1 have the following proporty:
r odd and r  p1 then the factors f of Mp1 with f > p are f=1 mod r
I was a little bit astonished about it. I have no explication for it.
Perhaps someone could explain it to me and other members, interested in number theory.
@Batalov: The factoring for Mp+1 is easy, sufficient for a proof and very nice, but perhaps the factoring of Mp1 gives some more details.