There are 7 factorial, or 5040 permutations of the letters in the word NUMBERS.
The word "numbers" consists of 7 distinct letters. The number of permutations of these letters is calculated using the factorial of the number of letters, which is 7!. Therefore, the total number of permutations is 7! = 5,040.
10! permutations of the word "Arithmetic" may be made.
There are 195 3-letter permutations.
There are 5040.