factorial in python

using for loop

total=1
num=int(input("enter the numbers\n"))
for i in range(1,num+1):
total=total*i
print(total)

another for loop 

fact=7
for a in range(1,fact):
  fact=a*fact
 
print(fact) 

using while loop

i=1 n=5 product=1 while (i <= n): product = product * i i = i + 1 print(product)