© 2016 Shmoop University, Inc. All rights reserved.

Factorials and Permutations Examples

Example 1

What are all the permutations of the numbers 1, 2, and 3?

Example 2

How many ways can we choose 3 books from 2 books, with repetition allowed?

Example 3

How many ways can we choose 2 books from 3 books, with repetition allowed?