Euler totient
Euler's totient function $\phi$ (not to be confused with the Euler phi) is defined for $n=1,2,3,\ldots$ so that $\phi(n)$ equals the number of positive integers less than or equal to $n$ that are relatively prime to $n$.
Graph of $\phi$ to $3500$.
- Totientplot,to15000.png
Graph of $\phi$ to $15000$.
Properties
Videos
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