List questions from totient-function

Published on 07 Nov 2019 - 1:59

153

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Euler's phi function application

Published on 07 Nov 2019 - 6:27

134

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Is there a power series generating function for Euler's totient function

Published on 26 Mar 2026 - 3:05

524

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Suppose a = positive integer and gcd(a, 10) = 1. Prove that a divides infinitely many repunits.

Published on 23 Feb 2026 - 8:32

249

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Questions related to the Dedekind psi function $\psi(n)$

Published on 21 Mar 2026 - 21:54

332

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Show $\gcd(a,b)=1$ implies $\varphi(a\cdot b)=\varphi(a)\cdot\varphi(b)$

Published on 25 Mar 2026 - 10:53

653

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Euler's Formula application for distinct odd primes with gcd 1

Published on 13 Nov 2019 - 3:39

112

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Sequence of occurrences in Euler $\phi$ function?

Published on 14 Nov 2019 - 19:23

237

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Does $\sum_{n=1}^\infty \frac{1}{\phi(n)^s}$ have a euler product?

Published on 25 Mar 2026 - 14:37

52

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Sieving all the numbers $j$ with $\gcd(j,n)=1$ and $1\leq j \leq n$

Published on 16 Nov 2019 - 3:12

238

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Proof using equation that if P an odd prime then there is a primitive root of p^n

Published on 18 Nov 2019 - 2:18

399

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Find smallest $N_0$ such that $\phi(n)\geq 5 \; \forall n\geq N_0$

Published on 19 Nov 2019 - 16:23

366

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Partition function and "Euler function" - what does it mean?

Published on 27 Mar 2026 - 6:05

66

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How to prove that $a^x≡a \pmod N$

Published on 24 Nov 2019 - 10:01

128

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Unique irreducible polynomial of degree $n$ over $\mathbb{Z}_p$ $\Rightarrow$ $n = \phi(p^n-1)$

Published on 06 Dec 2019 - 2:29

List Question

If $gcd(n,m)=1$ and $x\equiv y(mod\phi(m))$ then $n^{x}\equiv n^{y}(modm)$.

Euler's phi function application

Is there a power series generating function for Euler's totient function

Suppose a = positive integer and gcd(a, 10) = 1. Prove that a divides infinitely many repunits.

Questions related to the Dedekind psi function $\psi(n)$

Show $\gcd(a,b)=1$ implies $\varphi(a\cdot b)=\varphi(a)\cdot\varphi(b)$

Euler's Formula application for distinct odd primes with gcd 1

Sequence of occurrences in Euler $\phi$ function?

Does $\sum_{n=1}^\infty \frac{1}{\phi(n)^s}$ have a euler product?

Sieving all the numbers $j$ with $\gcd(j,n)=1$ and $1\leq j \leq n$

Proof using equation that if P an odd prime then there is a primitive root of p^n

Find smallest $N_0$ such that $\phi(n)\geq 5 \; \forall n\geq N_0$

Partition function and "Euler function" - what does it mean?

How to prove that $a^x≡a \pmod N$

Unique irreducible polynomial of degree $n$ over $\mathbb{Z}_p$ $\Rightarrow$ $n = \phi(p^n-1)$

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