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- Newsgroups: sci.math
- Path: sparky!uunet!super!kedlaya
- From: kedlaya@metropolis.super.org (Kiran Sridhara Kedlaya)
- Subject: Re: n doesnt divide 2^n-1
- Message-ID: <1992Sep4.152548.2904@super.org>
- Sender: kedlaya@metropolis (Kiran Sridhara Kedlaya)
- Nntp-Posting-Host: metropolis
- Organization: Supercomputing Research Center
- References: <1992Aug28.194350.19717@cs.rose-hulman.edu> <1992Aug28.203144.13773@super.org> <Sep.3.16.29.43.1992.1193@yoko.rutgers.edu>
- Date: Fri, 4 Sep 1992 15:25:48 GMT
- Lines: 9
-
- Mea culpa. I forgot to mention that 2^phi(n) - 1 is divisible by n, and phi(n)
- is less than n, so d is at most phi(n), so it's less than n.
-
- (Just in case anyone is wondering, phi(n) is the number of integers less than
- n and relatively prime to it. Quite clearly that's less than n.)
-
- Thanks for the tip, Bittu.
-
- -Kiran (kedlaya@super.org)
-