factorial in python

1def factorial(n):
2    fact = 1
3    for num in range(2, n + 1):
4        fact = fact * num
5    return(fact)

1def factorial(n):
2    if n == 0:
3        return 1
4    else:
5        return n * factorial(n-1)
6n=int(input("Input a number to compute the factiorial : "))
7print(factorial(n))
8
9

1#Assumes n is possitive
2def factorial(n):
3  return 1 if n <=1 else n*factorial(n-1)

1def fact(n):
2  return 1 if (n==0 or n==1) else n*fact(n-1)
3fact(3)
4

1def fact(n):
2	if n==0 or n==1:
3		return 1
4	else:
5		return n*fact(n-1)
6print(fact(4)) #4 is the sample value it will returns 4!==> 4*3*2*1 =24
7#OR
8import math
9print(math.factorial(4))

1def factorial(n):
2	for x in range(n-1,0,-1):
3		n = n*x
4	if n == 0: return 1
5	if n < 0 : return False
6	return n
7  
8factorial(5) # returns 120
9
10####### lambda Factorial ########
11
12factorial = lambda n: n*factorial(n-1) if n > 0 else 1
13#OR
14factorial = lambda n: n>0 and n*factorial(n-1) or 1
15
16######### Recursion ##########
17def factorial(n):
18	if n <= 0: return 1
19    else: return n * factorial(n-1)
20    
21# Do not use big number XD