Did You Know on Instagram: "6174 is known as a unique number because of a strange and reliable mathematical pattern connected to it. If you take almost any four digit number with at least two different digits, rearrange the digits to make the largest and smallest numbers possible, then subtract the smaller from the larger, you will eventually arrive at 6174. Repeating the process again with the new number keeps returning the same result. No matter where you start, the sequence stabilizes there.