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Từ khóa » Phi(n)/n 1/4

• Find All $n \in \mathbb{Z^+}$ Such That $\phi(n)=4

• 3.8 The Euler Phi Function

• Euler's Totient Function - Wikipedia

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• Totient Function -- From Wolfram MathWorld

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• [PDF] Distribution Functions Of The Sequence Phi(n)/n, N In (k,k+N]

• [PDF] Euler's ϕ Function - Dartmouth College Mathematics

• Euler's Totient Function - OeisWiki

• [PDF] Quiz 2, 6/30/16 The Value Of The Euler φ-function At The Positive ...

• On The Equation φ(n) = φ(n + K) - Jstor

• Values Taken Many Times By Euler's Phi-Function - JSTOR

• Is The Probability That N And Phi(n) (totient Function) Are Coprime One ...