public static void main ( String args [ ] ) {
  Scanner scan = new Scanner ( System . in ) ;
  int n = scan . nextInt ( ) ;
  int [ ] a = new int [ n ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    a [ i ] = scan . nextInt ( ) ;
  }
  Arrays . sort ( a ) ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    for ( int j = i ;
    j < n ;
    j ++ ) {
      if ( a [ j ] % a [ i ] == 0 ) {
        a [ j ] = a [ i ] ;
      }
    }
  }
  HashSet < Integer > ar = new HashSet < Integer > ( ) ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    ar . add ( a [ i ] ) ;
  }
  System . out . println ( ar . size ( ) ) ;
}

public static void main ( String args [ ] ) { Scanner scan = new Scanner ( System . in ) ; int n = scan . nextInt ( ) ; int [ ] a = new int [ n ] ; for ( int i = 0 ; i < n ; i ++ ) { a [ i ] = scan . nextInt ( ) ; } Arrays . sort ( a ) ; for ( int i = 0 ; i < n ; i ++ ) { for ( int j = i ; j < n ; j ++ ) { if ( a [ j ] % a [ i ] == 0 ) { a [ j ] = a [ i ] ; } } } HashSet < Integer > ar = new HashSet < Integer > ( ) ; for ( int i = 0 ; i < n ; i ++ ) { ar . add ( a [ i ] ) ; } System . out . println ( ar . size ( ) ) ; }
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