User blog comment:MachineGunSuper/My axiom about the biggest number/@comment-30754445-20171130162737

It's far *far* less than Graham's number, let alone TREE or Loader or Rayo.

Your number is a typical hexational number, which is equal to about "10 haxated to 125" which can also be written as 10↑↑↑↑125.

Graham, on the other hand, is so large that it can't be written with any reasonable number of arrows.

Another way to look at things: In my unified Letter Scale, your number is a J5 while Graham's Number is an L2. You can tell Graham's is bigger, because L comes after J in the alphabet.

(for comparision: TREE(3) is a T2 level number, while Loader and Rayo are completely off the scale)