List questions from totient-function

Published on 27 Mar 2026 - 21:17

103

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Proof on Euler totient function

Published on 01 Jan 2017 - 7:47

682

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A GCD summation $\sum_{\gcd(i,n)=1} \gcd(i-1,n)$

Published on 26 Mar 2026 - 23:09

177

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Form of odd primes with totients co-prime to $5$?

Published on 26 Mar 2026 - 19:19

1.7k

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Understanding Gauss Theorem:$n=\sum_{d|n}\phi(d)$

Published on 03 Jan 2017 - 5:05

1.7k

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Finding a number that is relative prime to given number

Published on 03 Jan 2017 - 8:23

119

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Find integers such that $\varphi(n)^3\le n^2$ (Mathematical Reflections)

Published on 05 Jan 2017 - 8:16

854

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Proof that the Euler phi function is multiplicative using cyclic group argument

Published on 21 Jan 2017 - 3:44

88

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How to prove that $m \mid \phi (a^m - 1)$ if $gcd(a,m) = 1$

Published on 30 Jan 2017 - 19:04

63

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About the divisors of totient numbers

Published on 02 Feb 2017 - 22:10

1k

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Totient function: $φ(2^n)$

Published on 04 Feb 2017 - 22:00

128

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Divisibility property of the totient function $\varphi$

Published on 06 Feb 2017 - 15:55

145

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For what integers $n$ does $\varphi(n)=n-2$?

Published on 07 Feb 2017 - 2:03

899

Views

New, elegant proofs for $\varphi(p^{k})=p^{k}-p^{k-1}$

Published on 14 Feb 2017 - 17:37

108

Views

Find 3 integers a such that $ a\equiv 19^{10562}(mod\: 40320) $

Published on 18 Feb 2017 - 4:04

List Question

Understanding Multiplicative of $\phi(mn)$

Proof on Euler totient function

A GCD summation $\sum_{\gcd(i,n)=1} \gcd(i-1,n)$

Form of odd primes with totients co-prime to $5$?

Understanding Gauss Theorem:$n=\sum_{d|n}\phi(d)$

Finding a number that is relative prime to given number

Find integers such that $\varphi(n)^3\le n^2$ (Mathematical Reflections)

Proof that the Euler phi function is multiplicative using cyclic group argument

How to prove that $m \mid \phi (a^m - 1)$ if $gcd(a,m) = 1$

About the divisors of totient numbers

Totient function: $φ(2^n)$

Divisibility property of the totient function $\varphi$

For what integers $n$ does $\varphi(n)=n-2$?

New, elegant proofs for $\varphi(p^{k})=p^{k}-p^{k-1}$

Find 3 integers a such that $ a\equiv 19^{10562}(mod\: 40320) $

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