Mathematics Throughout History

Development Ofweights and Measures

Why is the word “centimillion” incorrect?

Centimillion is a word sometimes incorrectly used to mean 100 million (108). But the metric prefix “centi-” means 1/100, not 100. There are ways to name this number: 100 million could be called a hectomillion; in the United States, it could be called a decibillion.


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