Re: Cyclotomic polynomial

On 21 mar, 16:28, Phil Carmody <thefatphil_demun...@xxxxxxxxxxx>
wrote:
"Yoyontzin" <yoyont...@xxxxxxxxx> writes:
Is it true that if d | n and the n-th cyclotomic
polynomial Phi_n(x) divides x^d-1 then d=n ?

Yes. Proving it depends on what you're permitted to assume.

Phil
--
"Home taping is killing big business profits. We left this side blank
so you can help." -- Dead Kennedys, written upon the B-side of tapes of
/In God We Trust, Inc./.

No, in fact it is not a Homework or something, I was just
wondering ! this question came up studying cyclotomic fields and
galois theory.

.

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