English to English
noun
- the number that is represented as a one followed by 24 zeros
In England they call a septillion a quadrillion.
source: WordNet 3.0
- the number that is represented as a one followed by 15 zeros
source: WordNet 3.0
- According to the French notation, which is followed also upon the Continent and in the United States, a unit with fifteen ciphers annexed; according to the English notation, the number produced by involving a million to the fourth power, or the number represented by a unit with twenty-four ciphers annexed. See the Note under Numeration.
source: Webster 1913
