Euler Phi Function of 1154

Example of Euler Phi Function of 2 times Odd Prime

$\phi \left({1154}\right) = 576$

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

Proof

We have that:

$1154 = 2 \times 577$

Thus:

\(\ds \phi \left({1154}\right)\)

\(=\)

\(\ds 577 - 1\)

Euler Phi Function of 2 times Odd Prime

\(\ds \)

\(=\)

\(\ds 576\)

$\blacksquare$