Online Conversion - Large Numbers
Conway and Guy  have suggested that N-plex be used as a name for 10 N. This number ten to the power of a googolplex is also known as a googolduplex and googolplexian. None of these names are in wide use, nor are any currently found in dictionaries. The names googol and googolplex inspired the name of the Internet company Google and its corporate headquarters , the Googleplex , respectively.
This section illustrates several systems for naming large numbers, and shows how they can be extended past vigintillion. It was adapted from French usage, and is similar to the system that was documented or invented by Chuquet. Traditional American usage which was also adapted from French usage but at a later date , Canadian, and modern British usage assign new names for each power of one thousand the short scale.
Due to its dominance in the financial world and by the US dollar , this was adopted for official United Nations documents. Traditional French usage has varied; in , France, which had been using the short scale, reverted to the long scale.
The term milliard is unambiguous and always means 10 9. It is almost never seen in American usage and rarely in British usage, but frequently in continental European usage. The term is sometimes attributed to French mathematician Jacques Peletier du Mans circa for this reason, the long scale is also known as the Chuquet-Peletier system , but the Oxford English Dictionary states that the term derives from post-Classical Latin term milliartum , which became milliare and then milliart and finally our modern term.
For additional details, see billion and long and short scales. The choice of roots and the concatenation procedure is that of the standard dictionary numbers if n is 20 or smaller. For larger n between 21 and , prefixes can be constructed based on a system described by John Horton Conway and Richard K. Guy : . Since the system of using Latin prefixes will become ambiguous for numbers with exponents of a size which the Romans rarely counted to, like 10 6,, , Conway and Guy have also proposed a consistent set of conventions which permit, in principle, the extension of this system to provide English names for any integer whatsoever.
The following table shows number names generated by the system described by Conway and Guy for the short and long scales. Names of reciprocals of large numbers are not listed, as they are regularly formed by adding -th, e.
The International System of Quantities ISQ defines a series of prefixes denoting integer powers of between 1 and 8. From Wikipedia, the free encyclopedia. Wikimedia list article. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Mathematics portal. American Heritage Dictionary 4th ed.
Archived from the original on 12 January A Dictionary of Units of Measures ". Retrieved 15 August Real number, in mathematics, a quantity that can be expressed as an infinite decimal expansion. Real numbers are used in measurements of continuously varying quantities such as size and time, in contrast to the natural numbers 1, 2, 3, …, arising from counting. The word real distinguishes them from…. Prime, any positive integer greater than 1 that is divisible only by itself and 1—e.
A key result of number theory, called the fundamental theorem of arithmetic see arithmetic: fundamental theory , states that every positive integer greater than 1 can be….
History at your fingertips. Sign up here to see what happened On This Day , every day in your inbox! Here's what the number looks like, including all of its required zeros:. Do you think that number is big? How about the googolplex , which is a 1 followed by a googol of zeros. The googolplex is so large it doesn't have any meaningful use yet. The number is larger than the number of atoms in the universe.
In the United States, as well as around the world in science and finance, a billion is 1, million, which is written as a 1 followed by 9 zeros. There is also a "long scale," which is used in France and previously was used in the United Kingdom, in which a billion means 1 million million. According to this definition of a billion, the number is written with a 1 followed by 12 zeros.
The short scale and long scale were described by French mathematician Genevieve Guitel in Share Flipboard Email. Helmenstine holds a Ph.