They are credited with numerous mathematical advances , such as the discovery of irrational numbers .
The Pythagoreans regarded numerology and geometry as fundamental to understanding the nature of the universe and therefore central to their philosophical and religious ideas .
Pythagoreans are credited with numerous mathematical advances , such as the discovery of irrational numbers .
The Pythagoreans regarded numerology and geometry as fundamental to understanding the nature of the universe and therefore central to their philosophical and religious ideas .