Euler Phi Function/Examples

Examples
The values of the Euler $\phi$ function for the first few integers are as follows:


 * {| border="1"

! align="right" style = "padding: 2px 10px" | $n$ ! align="right" style = "padding: 2px 10px" | $\phi \left({n}\right)$ ! style = "padding: 2px 10px" | $m$ not coprime: $1 \le m \le n$
 * align="right" style = "padding: 2px 10px" | $1$
 * align="right" style = "padding: 2px 10px" | $1$
 * style = "padding: 2px 10px" | $\varnothing$
 * align="right" style = "padding: 2px 10px" | $2$
 * align="right" style = "padding: 2px 10px" | $1$
 * style = "padding: 2px 10px" | $1$
 * align="right" style = "padding: 2px 10px" | $3$
 * align="right" style = "padding: 2px 10px" | $2$
 * style = "padding: 2px 10px" | $3$
 * align="right" style = "padding: 2px 10px" | $4$
 * align="right" style = "padding: 2px 10px" | $2$
 * style = "padding: 2px 10px" | $2, 4$
 * align="right" style = "padding: 2px 10px" | $5$
 * align="right" style = "padding: 2px 10px" | $4$
 * style = "padding: 2px 10px" | $5$
 * align="right" style = "padding: 2px 10px" | $6$
 * align="right" style = "padding: 2px 10px" | $2$
 * style = "padding: 2px 10px" | $2, 3, 4$
 * align="right" style = "padding: 2px 10px" | $7$
 * align="right" style = "padding: 2px 10px" | $6$
 * style = "padding: 2px 10px" | $7$
 * align="right" style = "padding: 2px 10px" | $8$
 * align="right" style = "padding: 2px 10px" | $4$
 * style = "padding: 2px 10px" | $2, 4, 6, 8$
 * }
 * align="right" style = "padding: 2px 10px" | $7$
 * align="right" style = "padding: 2px 10px" | $6$
 * style = "padding: 2px 10px" | $7$
 * align="right" style = "padding: 2px 10px" | $8$
 * align="right" style = "padding: 2px 10px" | $4$
 * style = "padding: 2px 10px" | $2, 4, 6, 8$
 * }
 * }