Most here are aware that this number is strange, and that If you multiply or add this number to any number, the root will always be 9. But today I found out there's a lot more to this number than I was previously aware of.

Here's a cool trick in the video If you decide not to watch the video. For all you pick 4 players, If you want to see the root sum instantly, simply remove any number or numbers that add up to 9.

Example,

3954, I can instantly tell you the root sum is 3, how? I eliminated the 9 and 54. 5+4=9, and the number 9 itself.

3+9+5+4=21...2+1=3....Basically any numbers that either equal to 9, or the number 9 itself disappears, or cancels itself out....strange