Final answer:
The Pythagorean philosophers did not reject materialism and embrace the idea that everything is reduced to immaterial numbers.
Step-by-step explanation:
The statement that the Pythagorean philosophers rejected materialism and embraced the idea that everything is reduced to immaterial numbers is false. While Pythagoras and his followers believed in the significance of numbers and their role in explaining the universe, they did not reject materialism entirely. They recognized the importance of physical reality and its connection to mathematical principles.