Factorial in Python
Factorial of a number is the product of all integers between 1 and itself. To find a factorial of a given number, we use a for loop over a range from 1 to X(number entered). Remember that range() function excludes the stop value. Therefore, the stop value must be the input number + 1.
Each number in the range is multiplied cumulatively into the ‘fact’ variable which is initialized to 1.
Factorial in Python
nbr = int(input('Enter a number : '))
fact = 1
for i in range(1, nbr+1):
fact = fact * i
print (nbr,'! = ',fact)
Output:
Enter a number : 3 3 ! = 6
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