Problem with Euler's formula
5679
Why is $2\pi i \neq 0?$
52353
Bounding Euler's e by showing $2 \leq \left (1+ \frac{1}{n}\right)^n < 3$
14409
A problem about function N
115969
Amount of generators for cyclic group and Euler's function
145549
Generalizing values which Euler's-totient function does not take
84445
Problem with Minion Math
32184
Summation notation problem
53426
Proof of a formula involving Euler's totient function: $\varphi (mn) = \varphi (m) \varphi (n) \cdot \frac{d}{\varphi (d)}$
106120
Mathematica Improved Euler's Method
77070
Prove Euler's Theorem when the integers are not relatively prime
23451
The new introduced EulerMatrix problem
47230
A change of variables in the euler equation
116013
Problem applying L'Hopitals rule.
137608
Proof of Euclid's formula for primitive Pythagorean Triples
105623
Prime factorization knowing n and Euler's function
121240
How should one approch Project Euler problem 213 ("Flea Circus")?
58188
What's the proof that the Euler totient function is multiplicative?