When learning Python, one of the most common mathematical problems to understand is finding the factorial of a number. Factorial is the product of all positive integers less than or equal to a given number. For example, the factorial of 5 is calculated as 5 × 4 × 3 × 2 × 1 = 120. This concept is widely used in mathematics, statistics, and computer science for solving problems related to permutations, combinations, and probability. For detailed examples and step-by-step explanations, you can visit the official documentation here: https://docs.vultr.com/python/examples/find-the-factorial-of-a-number