Factorial example: def r_factorial(n): if n==1: return n else: t=r_factorial(n-1) t=t*n return t print(r_factorial(5)) Why once t=1 the function continue? The reason the recursion continues after reaching n == 1 is because of how recursive function calls work. Let's break it down step by step. Understanding Recursive Execution: Each recursive call pauses execution until the next recursive call returns a value. The recursion only stops when it reaches the base case, which is n == 1. At that point, the function starts returning values back up the recursive stack. Step-by-Step Breakdown: When you call recur_factorial(5), the function calls itself repeatedly, decreasing n each time: 1. r_factorial(5): Calls r_factorial(4), waiting for its result. 2. r_factorial(4):...