factorialNumber.py

def get_factorial(n):
	if n < 0:
		return -1 #if input is 0 break function 
	else:
		factorial = 1
		for i in range(1, n+1): # finds all number to multiply
			factorial *= i # number multiplied by the indices
		return factorial
		
def trailingZeros(n):
    count = 0
    i = 5
    while(n//i != 0): # function continues until n is no longer divisibly by 5
        count += int(n/i) # counts how many 5 there are 
        i = i * 5 # can be used for any number to figure out the zeros
    return count 
    

n = int(input("Type in a number: ")) # User input
fact = get_factorial(n) 
    
print("The factorail number of your input is " + str(fact) + ".")
print("And the number of trailing zeros is: " + str(trailingZeros(n)))