## Java || Find The Prime, Perfect & All Known Divisors Of A Number Using A For, While & Do/While Loop

This program was designed to better understand how to use different loops which are available in Java, as well as more practice using objects with classes.

This program first asks the user to enter a non negative number. After it obtains a non negative integer from the user, the program determines if the user obtained number is a prime number or not, aswell as determining if the user obtained number is a perfect number or not. After it obtains its results, the program will display to the screen if the user inputted number is prime/perfect number or not. The program will also display a list of all the possible divisors of the user obtained number via stdout.

REQUIRED KNOWLEDGE FOR THIS PROGRAM

Class Objects - How TO Use
Constructors - What Are They?
Do/While Loop
While Loop
For Loop
Modulus
Basic Math - Prime Numbers
Basic Math - Perfect Numbers
Basic Math - Divisors

QUICK NOTES:
The highlighted lines are sections of interest to look out for.

The code is heavily commented, so no further insight is necessary. If you have any questions, feel free to leave a comment below.

Once compiled, you should get this as your output:

Enter a number: 41

Input number: 41
41 is a prime number.
41 is not a perfect number.
Divisors of 41 are: 1, and 41

Do you want to input another number?(Y/N): y
------------------------------------------------------------
Enter a number: 496

Input number: 496
496 is not a prime number.
496 is a perfect number.
Divisors of 496 are: 1, 2, 4, 8, 16, 31, 62, 124, 248, and 496

Do you want to input another number?(Y/N): y
------------------------------------------------------------
Enter a number: 1858

Input number: 1858
1858 is not a prime number.
1858 is not a perfect number.
Divisors of 1858 are: 1, 2, 929, and 1858

Do you want to input another number?(Y/N): y
------------------------------------------------------------
Enter a number: -9

Sorry, but the number entered is less than the allowable limit.