Newbetuts
.
New posts in totient-function
Smallest $k$ such that $\phi(\phi(\phi(..._k(\phi(n)))))=1$
abstract-algebra
sequences-and-series
prime-numbers
upper-lower-bounds
totient-function
Upperbound of a sum [closed]
elementary-number-theory
totient-function
Find all $x \in \mathbb{N}$ that satisfy $pφ(x)=x$, where $p$ is a prime.
elementary-number-theory
totient-function
A congruence with the Euler's totient function and sum of divisors function
elementary-number-theory
prime-numbers
examples-counterexamples
totient-function
Characteristic of a finite ring with $34$ units
abstract-algebra
commutative-algebra
ring-theory
totient-function
positive-characteristic
Does the following proposition hold in number theory
elementary-number-theory
totient-function
What is the Euler Totient of Zero?
elementary-number-theory
totient-function
What factor has to be applied to $\phi(ab)\propto\phi(a)\phi(b)$ for non-coprime $a,b$?
elementary-number-theory
totient-function
New, elegant proofs for $\varphi(p^{k})=p^{k}-p^{k-1}$
number-theory
elementary-set-theory
alternative-proof
totient-function
Any group of order $n$ satisfying $\gcd (n, \varphi(n)) =1$ is cyclic
abstract-algebra
finite-groups
cyclic-groups
totient-function
What is a good way to introduce Euler's totient function?
elementary-number-theory
education
big-list
totient-function
motivation
Euler's totient and divisors count function relationship when $[(\frac{\varphi(n)}{2}+1)\cdot(\frac{\tau(n)}{2}+1)] = n$
elementary-number-theory
totient-function
conjectures
multiplicative-function
divisor-counting-function
Find last 3 digits of $ 2032^{2031^{2030^{\dots^{2^{1}}}}}$
number-theory
totient-function
Euler phi function: $\sum_{n=1}^{N}\sum_{d\mid n}d\cdot\phi(d)$
number-theory
summation
totient-function
arithmetic-functions
Modified Euler's Totient function for counting constellations in reduced residue systems
elementary-number-theory
reference-request
totient-function
prime-twins
$\phi(n)=\frac{n}{2}$ if and only if $n=2^k$ for some positive integer k
elementary-number-theory
totient-function
How to derive an identity between summations of totient and Möbius functions
number-theory
analytic-number-theory
totient-function
inclusion-exclusion principle - challenging problem [closed]
combinatorics
elementary-number-theory
inclusion-exclusion
totient-function
Relation between $\gcd$ and Euler's totient function .
elementary-number-theory
summation
gcd-and-lcm
totient-function
A possible Property of Euler's totient function: $n$ such that $\varphi(n)$ and $\varphi(n+1)$ are both powers of two
number-theory
totient-function
Prev
Next