# Nested Methods

In Scala it is possible to nest method definitions. The following object provides a factorial method for computing the factorial of a given number:

```
def factorial(x: Int): Int = {
def fact(x: Int, accumulator: Int): Int = {
if (x <= 1) accumulator
else fact(x - 1, x * accumulator)
}
fact(x, 1)
}
println("Factorial of 2: " + factorial(2))
println("Factorial of 3: " + factorial(3))
```

The output of this program is:

```
Factorial of 2: 2
Factorial of 3: 6
```