In [29]:

    

def multiplifier(*user_input):
    product = 1 # Identity property, any number of things times 0 is 0
    for term in user_input:
        print "%d * %d" % (product, term)
        product *= term # multiply the accumulator value by a term and store
    return product


    

In [9]:

    

multiplifier(1, 2, 3, 4)


    

    
Out[9]:





24

In [33]:

    

def factorialize(factor):
    return multiplifier(*list(range(1, factor+1))[::-1])


    

In [34]:

    

factorialize(5)


    

    




1 * 5
5 * 4
20 * 3
60 * 2
120 * 1






    
Out[34]:





120

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