The ancient Greek philosopher Pythagoras (500BC) was a brilliant mathematician. He believed that our reality is a physical manifestation of the energetic vibration of numbers. The Pythagorean method is a simple reduction method, used to turn big numbers into single digits. The values of all digits in the number are added up. When after the first addition the number still contains more than one digit, the process is repeated. Here’s an example: 456 can be reduced to 4+5+6