When mathematically broken down, 2025 proves Ancient Greek Philosopher Nicomachus’ Theorem of a perfect square. According to mathematician Jérôme Cottanceau, Léonard-de-Vinci High School in Montaigu, France, the year 2025 is the square of 45, the sum of all odd numbers up to 89, the sum of numbers one through nine cubed, and the square of … Continue reading 2025 Proves the Theorem of Ancient Greek Philosopher Nicomachus