Write a Python program that uses a function to find and return the factorial of a positive integer n. The function the receives a value and returns its factorial. If the passed parameter is negative, the function return the string "ERROR". Factorial of zero is one. Test your function.

C++ Programming: From Problem Analysis to Program Design
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Chapter6: User-defined Functions
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2. Write a Python program that uses a function to find and return the factorial of a positive
integer n. The function the receives a value and returns its factorial. If the passed
parameter is negative, the function return the string "ERROR". Factorial of zero is one.
Test your function.
If n is a positive integer, n factorial denoted by nl is a product
of all positive integers less than or equal to n. It is defined by
n! = n(n-1)(n-2)..(2)(1)
As a special case: 0!=1
Transcribed Image Text:2. Write a Python program that uses a function to find and return the factorial of a positive integer n. The function the receives a value and returns its factorial. If the passed parameter is negative, the function return the string "ERROR". Factorial of zero is one. Test your function. If n is a positive integer, n factorial denoted by nl is a product of all positive integers less than or equal to n. It is defined by n! = n(n-1)(n-2)..(2)(1) As a special case: 0!=1
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