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Computing Factorials

Explore how to compute factorials using recursion in C++. Learn the concept of factorials, understand the base and recursive cases in the function, and see step-by-step code implementation to solidify your understanding for coding interviews.

What is a factorial?

A factorial is the product of an integer and all the positive integers less than it. It is denoted by the symbol: !!

For example, 4! (read as four factorial) is denoted as follows:

4!=4×3×2×1=244!=4\times3\times2\times1=24

6!=6×5×4×3×2×1=7206!=6\times5\times4\times3\times2\times1=720

Expanding a Factorial

A factorial of any integer can be written as a product of that integer ...