static int largestGCDSubsequence ( int arr [ ] , int n ) {
  int ans = 0 ;
  int maxele = Arrays . stream ( arr ) . max ( ) . getAsInt ( ) ;
  ;
  for ( int i = 2 ;
  i <= maxele ;
  ++ i ) {
    int count = 0 ;
    for ( int j = 0 ;
    j < n ;
    ++ j ) {
      if ( arr [ j ] % i == 0 ) ++ count ;
    }
    ans = Math . max ( ans , count ) ;
  }
  return ans ;
}

static int largestGCDSubsequence ( int arr [ ] , int n ) { int ans = 0 ; int maxele = Arrays . stream ( arr ) . max ( ) . getAsInt ( ) ; ; for ( int i = 2 ; i <= maxele ; ++ i ) { int count = 0 ; for ( int j = 0 ; j < n ; ++ j ) { if ( arr [ j ] % i == 0 ) ++ count ; } ans = Math . max ( ans , count ) ; } return ans ; }
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