git clone https://github.com/Matheria/frontend-project-lvl1.git
npm install
npm link
$ brain-even
Answer "yes" if the number is even, otherwise answer "no".
$ brain-calc
Calculate the result of the expression.
$ brain-gcd
Find the greatest common divisor of given numbers.
$ brain-progression
What number is missing in the progression?
$ brain-prime
Answer "yes" if given number is prime. Otherwise answer "no".