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factorial

Language/Type: Python parameters cumulative algorithms

Write a function named factorial that accepts an integer n as a parameter and prints the factorial of n, or n!, as output. A factorial of an integer is defined as the product of all integers from 1 through that integer inclusive. For example, the call of factorial(4) should print the following output: 

4 factorial = 24

The factorial of 0 and 1 are defined to be 1. You may assume that the value passed is non-negative and that its factorial can fit in the range of type int.

Function: Write a Python function as described, not a complete program.

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