{-# LANGUAGE PartialTypeSignatures #-}
{-# LANGUAGE BangPatterns #-}
{-# LANGUAGE MultiWayIf #-}
module Main (main) where
-- module ABC.ABC170.D where

import qualified Data.ByteString.Char8 as C8
import qualified Data.Char as C
import qualified Data.List as L
import Data.Vector (Vector)
import qualified Data.Vector as V
import qualified Data.Vector.Mutable as MV
import qualified Data.Vector.Generic.Mutable as MGV
import qualified Data.Vector.Algorithms.Merge as V
import Control.Monad.ST
import Control.Monad

main :: IO ()
main = do
  [n] <- readInts
  readIntsV >>= output . solve n

solve :: Int -> Vector Int -> Int
solve n vec = V.sum $ runST $ do
  mvec <- V.thaw vec
  V.sort mvec
  forM_ [0..n-1] $ \i -> do
    x <- MV.unsafeRead mvec i
    when (x > 0) $ do
      MV.write mvec i 1
      forM_ [i+1..n-1] $ \j -> do
        y <- MV.unsafeRead mvec j
        when (y > 0) $ do
          when (x==y) $ MV.write mvec i 0
          when (y `mod` x == 0) $
            MV.write mvec j 0
  V.unsafeFreeze mvec

output :: Int -> IO ()
output = print

-- utils
readInts :: IO [Int]
readInts = L.unfoldr (C8.readInt . C8.dropWhile C.isSpace) <$> C8.getLine

readIntsV :: IO (Vector Int)
readIntsV = V.unfoldr (C8.readInt . C8.dropWhile C.isSpace) <$> C8.getLine

