danbruc
3 days ago
According to Wikipedia the two variants exist because the digits of large numbers used to be grouped into groups of six digits but in order to improve readability this was eventually changed to groups of three digits and some insisted that with that also the naming should be adjusted. A long scale trillion has three digit groups when using groups of six digits (1,000000,000000,000000) and six after the switch to groups of three (1,000,000,000,000,000,000) which then should be a short scale sextillion but somehow it ended up as a quintillion.
alberth
3 days ago
So basically
2 commas = "Millions"
3 commas = "Billions"
4 commas = ...
tardismechanic
3 days ago
I'm sorry it had to be done https://www.youtube.com/watch?v=rIB5HEcZBs8
zeckalpha
3 days ago
N-illion = 1000^(n-1)
cmcconomy
3 days ago
Thanks!
This is the key piece of information for making sense of it. Ultimately the OP's insight is that the number-naming system used in the west is thousands based instead of millions based, but came to that by observing the number-naming outcomes instead of the source notation that led to it.