This man names an algorithm that takes numbers a and b and returns the answer of the algorithm on numbers b and a mod b.
This man names an algorithm that takes numbers a and b and returns the answer of the algorithm on numbers b and a mod b. That algorithm computes the greatest common divisor. He proved that there are infinitely many primes, and he wrote a work in which the first (*) four books deal with plane geometry and include the Pythagorean Theorem and the parallel postulate. For 10 points, name this Greek mathematician who wrote Elements and is considered the father of geometry.
This man names an algorithm that takes numbers a and b and returns the answer of the algorithm on numbers b and a mod b.
{Euclid} of Alexandria