Scala | Sieve of Eratosthenes

def numberStream(n: Int): 
    Stream[Int] = Stream.from(n)
    
println(numberStream(10))

// Defining Sieve of Eratosthenes
def sieve_of_Eratosthenes(stream: Stream[Int]): 
    Stream[Int] = stream.head #:: sieve_of_Eratosthenes(
        (stream.tail) 
        filter (x => x % stream.head != 0)
        )
        
println(sieve_of_Eratosthenes(numberStream(10)))

val no_of_primes = sieve_of_Eratosthenes(numberStream(2))

// Selecting number of primes
println(no_of_primes)
(no_of_primes take 7) foreach { 
    println(_) 
    }

def numberStream(n: Int): 
    Stream[Int] = Stream.from(n)
     
println(numberStream(10))

// Defining Sieve of Eratosthenes
def sieve_of_Eratosthenes(stream: Stream[Int]): 
    Stream[Int] = stream.head #:: sieve_of_Eratosthenes(
        (stream.tail) 
        filter (x => x % stream.head!= 0)
        )
         
println(sieve_of_Eratosthenes(numberStream(10)))


val no_of_primes = sieve_of_Eratosthenes(numberStream(2))

// Selecting number of primes 
println(no_of_primes)
(no_of_primes take 7) foreach { 
    println(_) 
    }

object Sieve extends App {
    def abc(s: Stream[Int], head: Int) = { 
        val r = s filter {
            x => {
                if (x % head != 0) {
                    println()
                    println(s"${x} is not evenly divisible by ${head}")
                    
                    true
                    } 
                else {
                    println()
                    println(s"${x} is evenly divisible by ${head}. So Discard ${x}")
                false
                    }
                }
            }
        r
    }
    def numberStream(g: Int): Stream[Int] = Stream.from(g)
    
    def sieve_of_Eratosthenes(stream: Stream[Int]): 
    Stream[Int] = stream.head #:: sieve_of_Eratosthenes(
        abc(stream.tail, stream.head))
    
    val no_of_primes = sieve_of_Eratosthenes(numberStream(2))
    (no_of_primes take 7) foreach {
        println(_)
    }
}