It is another prefix recently adopted by the International System, along with Quetta and Ronna for multiples and quecto and ronto for submultiples. They are represented as follows: Queta as Q, Ronna as R, Quecto as q and ronto as r. In this case ronto- means or indicates a factor of 10-27 (one thousandth, on the Long Scale) and is used for submultiples or infinitely small parts. It is an the preceding 1 of 27 zeros. Ronto (symbol r) is a prefix adopted by Sistema Internacional in 2022. It is clarified that in the Short Scale used by Spanish-speaking countries the Ronto would be called 1 octillionth (because our system uses 3 zeros less).
* Only one "like" per meaning and day, the more "likes" the meaning will appear higher in the list
