Newsgroups: sci.math
From: hoey@aic.nrl.navy.mil (Dan Hoey)
Date: 1995/05/18
Subject: Re: Multiperfect Numbers

hartley@madvax (Michael Hartley) writes:

> So "perfect" numbers (such as 6 and 28) are 2-perfect.

Too, too perfect.  In Guy's book, the terminology is "2-fold perfect".

> While on this topic, are there any odd k-perfect numbers, for any k?

Only one is known.

Dan
Hoey@AIC.NRL.Navy.Mil