Euler Phi Function of 106

Example of Euler Phi Function of 2 times Odd Prime

$\phi \left({106}\right) = 52$

where $\phi$ denotes the Euler $\phi$ Function.

Proof

We have that:

$106 = 2 \times 53$

Thus:

\(\ds \phi \left({106}\right)\)

\(=\)

\(\ds 53 - 1\)

Euler Phi Function of 2 times Odd Prime

\(\ds \)

\(=\)

\(\ds 52\)

$\blacksquare$