Names of Large Numbers | Billion, Trillion, Googolplex (2024)

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Large numbers are numbers above one million that are usually represented either with the use of an exponent such as 109 or by terms such as billion or thousand millions that frequently differ from system to system. The American system of numeration for denominations above one million was modeled on a French system, but in 1948 the French system was changed to correspond to the German and British systems. In the American system each of the denominations above 1,000 millions (the American billion) is 1,000 times the preceding one (one trillion = 1,000 billions; one quadrillion = 1,000 trillions). In the British system each of the denominations is 1,000,000 times the preceding one (one trillion = 1,000,000 billions) with the sole exception of milliard, which is sometimes used for 1,000 millions. In recent years British usage has reflected widespread and increasing use of the American system.

The table provides American and British names for various large numbers.

Large numbers
value in powers of ten number of zeros American name British name
109 9 billion thousand million or milliard
1012 12 trillion billion
1015 15 quadrillion thousand billion
1018 18 quintillion trillion
1021 21 sextillion thousand trillion
1024 24 septillion quadrillion
1027 27 octillion thousand quadrillion
1030 30 nonillion quintillion
1033 33 decillion thousand quintillion
1036 36 undecillion sextillion
1039 39 duodecillion thousand sextillion
1042 42 tredecillion septillion
1045 45 quattuordecillion thousand septillion
1084 84 quattuordecillion
10100 100 googol googol
10303 303 centillion
10600 600 centillion
10googol googol googolplex googolplex

This article was most recently revised and updated by Erik Gregersen.

Names of Large Numbers | Billion, Trillion, Googolplex (2024)

FAQs

Names of Large Numbers | Billion, Trillion, Googolplex? ›

As discussed in our blog, a quadrillion can be defined as 1 with 15 zeros. It can written as 1,000,000,000,000,000. We have one quintillion, sextillion, septillion, octillion, and the list goes on till Graham's number. It is a good idea to know and remember the names of large numbers.

What is called 100000000000000000000000000? ›

As discussed in our blog, a quadrillion can be defined as 1 with 15 zeros. It can written as 1,000,000,000,000,000. We have one quintillion, sextillion, septillion, octillion, and the list goes on till Graham's number. It is a good idea to know and remember the names of large numbers.

Is a zillion a real number? ›

'Zillion' is not a real number. It's not actually the name of a number at all. People may say they have a 'zillion' things, but they are using this as a made-up adjective that means 'a huge amount. ' In mathematics, there is no number called a 'zillion.

Is gazillion a real number? ›

Answer and Explanation:

'Gazillion' is not a real number. Actually, it's not a number at all! 'Gazillion' is a word that is used to describe a large amount of something, such as 'There were a gazillion ants on the ice-cream cone I dropped.

How big is Graham's number? ›

That gives rise to the number 7,625,597,484,987, or about 7.6 trillion. Wow, quite a bit! This is now the time where we can introduce a number which breaks everything we've seen so far, by a lot, and which is very famous both in mathematics and in many recreational circles of mathematicians who delight in such games.

Is omega bigger than infinity? ›

The Absolute Infinite (symbol: Ω) is an extension of the idea of infinity proposed by mathematician Georg Cantor. It can be thought of as a number that is bigger than any other conceivable or inconceivable quantity, either finite or transfinite.

How much is 1 gazillion? ›

A gazillion is an informal and non-standard term used to refer to a very large number that is too big to be quantified. It is not a real numerical value and therefore doesn't have any specific number of zeroes. It is used colloquially to express a very large quantity of something, usually greater than a billion.

How much is 1 unvigintillion? ›

An unvigintillion is equal to 1066 in short scale, or 10126 in long scale by Conway and Guy's naming system or by Rowlett's naming system. In the long scale, 1066 is called undecillion, which is commonly used in France and Germany.

How big is a millinillion? ›

A millillion (alternately millinillion, milliatillion or milletillion) is equal to 103,003 in the short scale, or 106,000 in the long scale (this number is also called Platillion). It is made by combining "mille" (1,000) with the standard -illion suffix, which is itself derived from "mille".

Is a bajillion a real number? ›

Answer and Explanation:

There is no such number as a 'bajillion,' so it is not a real number. People say 'bajillion' to take the place of a real number when they are emphasizing how large something is.

Is a bazillion bigger than a gazillion? ›

One source actually provides this convenient ranking system. We can say that zillion and jillion are roughly in the same class in terms of vastness. Beyond these lie the more ginormous bazillion and bajillion. Beyond even these are the incomprehensible gazillion and gajillion [4] .

How much is a bazillion? ›

Answer and Explanation:

A bazillion is an unspecified and exaggerated number. While it is not a true ordinal or counting number because it is not a specific quantity, we can use bazillion to describe a huge number of things.

Is Duotrigintillion a real number? ›

The number Duotrigintillion is the 32nd number in the series million (10^6), billion (10^9), trillion (10^12), quadrillion (10^15) etc. The nth number in this series is 10^(3n+3). So one Duotrigintillion = 10^(3*32+3) = 10^99 (1 followed by 99 digits).

Is Bazillion an actual number? ›

This is the Greek letter mu, used to denote 'micro', as 'm' was already taken. None of the words jillion, zillion, squillion, gazillion, kazillion, bajillion, or bazillion (or Brazilian) are real numbers. In the last two cases above, you'll notice that instead of an equals symbol we've used a squiggly equals symbol.

Is Vigintillion a real number? ›

noun. , plural vi·gin·til·lions, (as after a numeral) vi·gin·til·lion. a cardinal number represented in the U.S. by 1 followed by 63 zeros, and in Great Britain by 1 followed by 120 zeros.

What is greater than centillion? ›

A centillion is the number 1 followed by 303 zeros. It is the highest number given a name under the convention that every 3 zeros you add gets a new name (thousand, million, billion, trillion, etc.) So there is no "next number" in that naming sequence.

Who is bigger than googolplex? ›

What's bigger than a googolplex? Even though a googolplex is immense, Graham's number and Skewes' number are much larger. Named after mathematicians Ronald Graham and Stanley Skewes, both numbers are so large that they can't be represented in the observable universe.

Is Googleplex the biggest number ever? ›

The thing is, infinity is not a number, but a concept or idea. A "googol" is the number 1 followed by 100 zeroes. The biggest number with a name is a "googolplex," which is the number 1 followed by a googol zeroes.

What number has 1000 zeros? ›

Googol is 1000 zeros. And so on. Americans get a new name every three additional digits British get a new name every six.

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