text: permutations-math? how many permutations are there for the letters in the word 'kennebunk'? well, 9 letter word. if all of the were different, then there would be 9! permutations.  but there are 3 n's, 2 k's, and 2 e's, 1 b, and 1 u. so, we must divide 11! by (3! * 2! * 2! * 1! * 1!).  answer : 11! / (6 * 2 * 2 * 1 * 1) = 1,663,200