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Euler-Fermat theorem (Theorem)

If $ a,n \in \mathbb{Z}$ such that $ \gcd(a,n)=1$, then $ a^{\varphi (n)} \equiv 1 \operatorname{mod} n$, where $ \varphi$ is the Euler totient function.



"Euler-Fermat theorem" is owned by Wkbj79. [ full author list (2) | owner history (1) ]
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See Also: Fermat's little theorem, Fermat's theorem proof

Other names:  Euler's theorem
Keywords:  number theory

Attachments:
proof of Euler-Fermat theorem (Proof) by KimJ
corollary of Euler-Fermat theorem (Result) by kamala
proof of Euler-Fermat theorem using Lagrange's theorem (Proof) by alozano
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Cross-references: Euler totient function
There are 6 references to this entry.

This is version 6 of Euler-Fermat theorem, born on 2001-10-15, modified 2007-08-23.
Object id is 198, canonical name is EulerFermatTheorem.
Accessed 11859 times total.

Classification:
AMS MSC11-00 (Number theory :: General reference works )
 20-01 (Group theory and generalizations :: Instructional exposition )
 20A05 (Group theory and generalizations :: Foundations :: Axiomatics and elementary properties)

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Euler-Fermat theorem by CliveAC on 2006-05-25 06:33:47
I am not very familiar with this area but your proof appears to assume n>0 (and a>0?) whereas the theorem statement does not?
Can you clarify please?
Regards,
Clive Counsell
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