a prime number i a number that is divisible only by itself and 1 (e.g. 2, 3, 5, 7, 11)
Also , you can think of it as A Prime Number is a number that cannot be made by multiplying other whole numbers

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• first check that the type of the parameter is of type str
• then, it should separates the word at any capital letter and replace it with a small letter
• and should return the new modified string !

Example: helloWorldThere should return : hello world there