Project Euler Problem 5

gistfile1.scala

/**
 * Project Euler Problem 5
 */
object P5 {

  def from(n:Long)(multiple:Int):Stream[Long] = (n * multiple) #:: from(n + 1)(multiple)

	def isAnswer(n:Long):Boolean = !(1 to 20).exists(n % _ != 0)

	def answer():Long = {
		for (n <- from(1)(20)) {
			if (isAnswer(n)) return n
		}
		return 0
	}
}