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Million Million M Mega-2 1 10 9: Billion Thousand million Milliard G Giga-3 2 10 12: Trillion Billion Billion T Tera-4 2 10 15: Quadrillion Thousand billion Billiard P Peta-5 3 10 18: Quintillion Trillion Trillion E Exa-6 3 10 21: Sextillion Thousand trillion Trilliard Z Zetta-7 4 10 24: Septillion Quadrillion Quadrillion Y Yotta-8 4 10 27 ...
Thus, in France and Italy, some scientists then began using billion to mean 10 9, trillion to mean 10 12, etc. [28] This usage formed the origins of the later short scale. The majority of scientists either continued to say thousand million or changed the meaning of the Pelletier term, milliard, from "million of millions" down to "thousand ...
Genocide/Famine: 55 million is an estimated upper bound for the death toll of the Great Chinese Famine. Literature: Wikipedia contains a total of around 64 million articles in 354 languages as of February 2025. War: 70 to 85 million casualties estimated as a result of World War II. Mathematics: 73,939,133 is the largest right-truncatable prime.
trillion tera- (T) 1 000 000 000 000: 10 12: 12 ... so it is very easily determined without a calculator to be 6. ... million: million 2: 100: 1 000 000 000 000 ...
Visualization of 1 trillion (short scale) A Rubik's cube, which has about 43 trillion (long scale) possible positions. Trillion is a number with two distinct definitions: 1,000,000,000,000, i.e. one million million, or 10 12 (ten to the twelfth power), as defined on the short scale. This is now the meaning in both American and British English.
Later, French arithmeticians changed the words' meanings, adopting the short scale definition whereby three zeros rather than six were added at each step, so a billion came to denote a thousand million (10 9), a trillion became a million million (10 12), and so on. This new convention was adopted in the United States in the 19th century, but ...
e3 (thousand) e6 (million) e9 (billion) e12 (trillion) e15 (quadrillion) Engineering notation may use "e" or "E", for example, e3km or E3km. Using uppercase E3km displays the factor as a word ("thousand") rather than as × 10 3. Using lowercase e3km displays the word if abbr=unit is used, or if abbr=off applies to the unit.
The use of thin spaces as separators, [30]: 133 not dots or commas (for example: 20 000 and 1 000 000 for "twenty thousand" and "one million"), has been official policy of the International Bureau of Weights and Measures since 1948 (and reaffirmed in 2003) stating "neither dots nor commas are ever inserted in the spaces between groups", [26]