 List of factorial and binomial topics

The topics of factorials and binomials are foundational concepts in combinatorics, mathematics, and probability theory. Here’s a list of key subjects related to each: ### Factorial Topics 1. **Definition of Factorial**: - Notation and calculation (n!) - Definition for non-negative integers 2. **Properties of Factorials**: - Factorial of zero (0! = 1) - Recursive relationship (n!