"Brain Games" is a set of five console games, built on the principle of popular mobile applications to upgrade brain power. There are questions in every game needed to be answered correctly. The game is considered to be over after three questions answered correctly. In case of wrong answers the game is completed and the user’s being offered to play it again. The games are as follows:

1. Calculator. Arithmetic expressions to be calculated.
2. Progression. Search for missing numbers in a sequence of numbers.
3. Determination of an even number.
4. Determination of the greatest common divisor.
5. Determination of a prime number.

Firstly you have to clone this repo

Then using npm:

$ npm install
$ npm link

Using npm:

$ brain-calc

Using npm:

$ brain-math

Using npm:

$ brain-even

the answer must be entered in lowercase

Using npm:

$ brain-gcd

Using npm:

$ brain-prime

the answer must be entered in lowercase