Pythagoras said “all is number.” So, where some claimed that “fire” was the primary constituent of all things and others “earth,” Pythagoreanism held that numbers were the underlying principle. Do you accept this claim?

Newton was a Pythagorean. He even attributed the inverse square law to Pythagoras.

Plato is always hard to pin down, but he describes the immaterial world as crafted by number, prior to the material world.