6! = 6 factorial = 1x2x3x4x5x6 = 720
Well, to calculate this you must do: 1X2X3X4X5X6=720. So there are 720 different combinations.
6 factorial which is 720 words... but some of them may not be meaningful.. if s can occupy 6 positions, c can occupy 5, h can occupy 4,o can occupy 3 , other o can occupy 2,l can only 1... using multiplicative principle 1X2X3X4X5X6=720