how to find factorial of a number in python code example

Example 1: python calculate factorial

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

Example 2: Find faculty of a number python

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

Example 3: factorial in python

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

Example 4: factorial in python

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

Example 5: quick way to find the factor of a number python

def factors(x):
  listOfFactors = []
  for i in range(1, int(x ** 0.5)):   
    # Use a loop from 1 to the square root of x for more speed.
    if x % i == 0:
      listOfFactors.append(x)
      listOfFactors.append(i)
    # May repeat some numbers. Further code would be needed to fix that.
    print(i)