Python Program to Find Factorial of Number Using Recursion
- In this program, you'll learn to find the factorial of a number using recursive function.
- The factorial of a number is the product of all the integers from 1 to that number.
- For example, the factorial of 6 is
1*2*3*4*5*6 = 720
. Factorial is not defined for negative numbers and the factorial of zero is one, 0! = 1.
Source Code:
#Follow @Programmerfect
# Factorial of a number using recursion
def recur_factorial(n):
if n == 1:
return n
else:
return n*recur_factorial(n-1)
num = 7
# check if the number is negative
if num < 0:
print("Sorry, factorial does not exist for negative numbers")
elif num == 0:
print("The factorial of 0 is 1")
else:
print("The factorial of", num, "is", recur_factorial(num))
# Factorial of a number using recursion
def recur_factorial(n):
if n == 1:
return n
else:
return n*recur_factorial(n-1)
num = 7
# check if the number is negative
if num < 0:
print("Sorry, factorial does not exist for negative numbers")
elif num == 0:
print("The factorial of 0 is 1")
else:
print("The factorial of", num, "is", recur_factorial(num))
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