FizzBuzz in Scala

FizzBuzz.scala

object FizzBuzz {
    def main(args: Array[String]) {
        (1 to 30) map fizzbuzz map println
    }
    case class MultipleOf(n: Int) {
        def unapply(x: Int): Option[Int] = {
            if(x % n == 0) {
                Some(x/n)
            } else {
                None
            }
        }
    }

    val multipleOfThree = new MultipleOf(3)
    val multipleOfFive = new MultipleOf(5)
    val multipleOfFifteen = new MultipleOf(15)

    def fizzbuzz (x: Int) = {
        x match {
            case multipleOfFifteen(_)   => "FizzBuzz"
            case multipleOfThree(_)     => "Fizz"
            case multipleOfFive(_)      => "Buzz"
            case _                      => x
        }
    }
}