Find prime numbers between 1 and 100

primes.scala

package misc
import scala.math

object Prime {
  def prime(num: Int) = 
    num > 1 && 
      (2 to (math.sqrt(num) toInt)).forall ( num % _ != 0)
    
  def main(args: Array[String]): Unit = {
    1 to 100 filter prime foreach println
  }
}