+129840 To find this, we take the factorial of the number of letters in the word "lullaby" = (7!) and divide by the factorial(s) of the number of occurrences of a repeated letter or letters.... (I hope I said that correctly!!)
So, since there is only one repeated letter "l" and it appears 3 times, we have
7! / 3! = 5040/6 = 840 permutations
+129840 To find this, we take the factorial of the number of letters in the word "lullaby" = (7!) and divide by the factorial(s) of the number of occurrences of a repeated letter or letters.... (I hope I said that correctly!!)
So, since there is only one repeated letter "l" and it appears 3 times, we have
7! / 3! = 5040/6 = 840 permutations
