This question already has an answer here:
It's common in science to say something doubled (x2) or even quadrupled (x4) or quintupled (x5). However, higher orders of change are less frequently written in this form. The only exceptions are changes of 10x, 100x, 1000x , etc., which are often referred to as changes in "order(s) of magnitude."
This leads to my question: If I have a value that has octupled, is there another way to refer to this increase by avoiding usage of the uncommon word "octuple?"
"Increased 8x (or 8 times) seems more like informal speech being placed into text, but perhaps I'm wrong about that.
Does "increased by an order of eight" work?
Or perhaps, it's more appropriate to say "increased by a factor of 8"?