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- Newsgroups: sci.math
- Path: sparky!uunet!pipex!warwick!pavo.csi.cam.ac.uk!gjm11
- From: gjm11@cus.cam.ac.uk (G.J. McCaughan)
- Subject: Re: n doesnt divide 2^n-1
- Message-ID: <1992Sep7.224554.22621@infodev.cam.ac.uk>
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- Organization: U of Cambridge, England
- References: <Sep.3.16.29.43.1992.1193@yoko.rutgers.edu> <1992Sep4.152548.2904@super.org> <Sep.7.13.02.21.1992.5036@pepper.rutgers.edu>
- Date: Mon, 7 Sep 1992 22:45:54 GMT
- Lines: 7
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- It was conjectured that if we write 2^n=an+b with 0<=b<n then
- a is always even and b is always a power of 2, or at least always even.
- For n=25 we get b=7.
- For n=12 we get a=341.
- So, I'm afraid none of the conjectures is true.
- Powers of 2 do seem to come up an awful lot for b, though.
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