Write a program in java that prompts the user for a positive whole number. Perform data validation to ensure the number is greater than or equal to 1. Then determine if the number is perfect. A number is perfect if the sum of its factors including one, but not the number itself, adds up to the number. 6 is perfect because its factors are 1 2 3 and 6. We ignore 6 and add 1+2+3. They sum to 6. 12 is not perfect. Its factors are 1 2 3 4 6 and 12. Ignoring the 12, its factors sum to 16.