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Confusingly there are two types of billion.

Long and short. In Britain, a billion used to be a million million 1012 whilst in the US a billion was a thousand million 109. (Probably so there could be more billionaires). Since globalisation, the short form has become the standard, so there are 9 zeros in a billion.

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13y ago
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Q: How many zeros are at the end of a billion?
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