1. Write an object-oriented program in C++ that prints the factorial of a given number. 2. Write an object-oriented program in C++ that prints whether a given number is prime or not. 3. Write an...

1. Write an object-oriented program in C++ that prints the factorial of a given number.

2. Write an object-oriented program in C++ that prints whether a given number is prime or not.

3. Write an object-oriented program in C++ to read any five real numbers and print the average.

4. Write an object-oriented program in C++ to generate a Fibonacci series of ‘n’ numbers, where n is defined by a programmer.

(The series should be: 1 1 2 3 5 8 13 21 32 and so on.)