Question

Prompt for an integer n from the keyboard. Write the code, using a for loop, to print the value of n! (n factorial).

Answer 1

To calculate the factorial of n using a for loop in Python, initialize a variable called 'factorial' to 1, then use a for loop to iterate from 1 to n and multiply the current value of 'factorial' by the loop variable 'i',and then print the result.

Step-by-step explanation:

To calculate n!, or n factorial, using a for loop in Python, you can start with a variable called 'factorial' initialized to 1. Then, use the for loop to iterate from 1 to n, and multiply the current value of 'factorial' by the loop variable 'i'. The student has asked for code that prompts for an integer n and then uses a for loop to calculate and print the factorial of n (n!). This will calculate the factorial of n. Here's the code:

n = int(input('Enter a number: '))

factorial = 1

for i in range(1, n+1):
factorial *= i

print(f'{n}! = {factorial}')