Numbers in Egyptian mythology

Certain numbers were considered sacred, holy, or magical by the ancient Egyptians, particularly 2, 3, 4, 7, and their multiples and sums.[1] == Three: symbol of plurality == The basic symbol for plurality among the ancient Egyptians was the number three: even the way they wrote the word for "plurality" in hieroglyphics consisted of three vertical marks (𓏼). Triads of deities were also used in Egyptian religion to signify a complete system.

Source: Wikipedia — Numbers in Egyptian mythology (CC BY-SA 4.0)