Write an RMI application in which the server has four functions:

1. The first function receives a string from the client and return the string reversed to the client
2. The second function receives two numbers from the client and returns the biggest number to the client
3. The third function receives a number from the client and returns its Factorial to the client.
4. The fourth function receives two numbers from the client and returns theirs GCD (Greatest Common Divisor)

Write the Interface, the Implementation class, the server code and a client that tests all above functions with the server.