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There are two correct answers to this question:

15 (in the USA and in any countries that use "short scale" naming conventions)

Or

24 (in countries that use "long scale" naming conventions)

To work out the number of zeros from the scales:

  • Long scale
This is based on powers of a million (106) so multiply the name prefix by 6

billion: bi implies 2 → 2 x 6 = 12 zeros

trillion: tri implies 3 → 3 x 6 = 18 zeros

quadrillion: quad implies 4 → 4 x 6 = 24 zeros

quintillion: quin implies 5 → 5 x 6 = 30 zeros

etc

  • Short scale
This is based on powers of a thousand (103) plus one, so multiply 3 by the name prefix plus one.

billion: bi implies 2 → 3 x (2 + 1) = 3 x 3 = 9 zeros

trillion: tri implies 3 → 3 x (3 + 1) = 3 x 4 = 12 zeros

quadrillion: quad implies 4 → 3 x (4 + 1) = 3 x 5 = 15 zeros

quintillion: quin implies 5 → 3 x (5 + 1) = 3 x 6 = 18 zeros

etc

→ quadrillion: quad implies 4 → 3 x (4 + 1) = 3 x 5 = 15 zeros.

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10y ago

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More answers

A gazillion.

log base 10 of a zillion.

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Wiki User

13y ago
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a zillion minus one

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Wiki User

12y ago
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9 zeros ( 1 000 000 000)

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Wiki User

9y ago
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5.3

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RKB Gaming

Lvl 2
2y ago
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Q: How many zeros are there in billion?
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