# Divisor Counting Function/Examples/3

(Redirected from Tau Function of 3)

## Example of Use of $\tau$ Function

$\map \tau 3 = 2$

where $\tau$ denotes the $\tau$ Function.

## Proof

We have that $3$ is a prime number.

From Tau of Prime Number:

$\map \tau 3 = 2$

$\blacksquare$