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 that - means or indicates a factor of 10-30 (one quintillion th, on the Long Scale) and is used for submultiples or infinitely small parts. It is an the preceding 1 of 30 zeros. Quecto (symbol q) is a prefix adopted by Sistema Internacional in 2022. It is clarified that in the Short Scale used by Spanish-speaking countries the quecto would be called 1 Nonillonésimo (because our system uses 3 zeros less)
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