One million (1,000,000), sometimes known as one thousand thousand, is the natural number that comes after 999,999 and before 1,000,001. It is made up of powers of 10, with thousands separated from units by zeros.

It is not possible to write exactly 1000 without using symbols because the alphabet only has 26 letters and many words contain multiple instances of **this value**. For example, "thousand", "millions", and "billion" all have **three occurrences** of 1000.

There are two ways to write 1000 in English: using digits or using **Roman numerals**. Using digits is the most readable option but using Roman numerals is necessary for mathematical notation.

Using digits is the most straightforward approach. You can write out the whole number or break it down into groups of three by typing the corresponding digits. For example, if you want to write out "1000" in decimal format then you would type "38". This returns 3 8 0 on my keyboard. To write out "3800" you would type "388".

Digits are useful tools for writing out numbers because they can be used in combination: multiplied by another digit for **a multi-digit result**.

1000, or two thousand, is the natural number that follows 999 but before 1001....

- The decimal representation for one thousand is.
- The SI prefix for a thousand units is “kilo-“, abbreviated to “k”—for instance, a kilometre or “km” is a thousand metres.

One million is represented as a "1" followed by **six zeros**: 1,000,000. The comma is optional, although it makes the numbers simpler to understand. $1,000,000 should be written as 1000000.

10,000,000 (ten million) is the natural number that comes after 9,999,999 and before 10,000,001. It is called "million" or "1 million". "Billion" is a larger number that starts at 1,000 million and increases by a factor of 10; thus there are about 3 billion people on Earth.

Million - n. , A very large number. [French, from **Latin mille**, thousand]

A million is a very large number. There are a few ways to think about **this number**: as a way of expressing how many people, animals, or things there are; as a representation of the size of something; or as a measure of quantity. It is difficult to say what role, if any, these different aspects play in our thinking about millions.

It is useful to have a word to describe a very large number. Scientists use the term "large number" when discussing probabilities. For example, they might say that the probability of a random person chosen from the Earth's population having **my blood type** is very small because the number of possible people is so large.

When you talk **about a million people**, where do you start? With 10,000?

A billion as defined by English Language Learners

- The number 1,000,000,000 : one thousand million.
- A very large amount or number.
- British, old-fashioned : the number 1,000,000,000,000.

It is expressed as 107 in scientific notation. Its binary representation is 10000000, and its octal representation is 324.

The standard way to write 10,000,000 is either 10,000,000 or 106, but not 10000000.

There is no easy way to write 1,000,000,000. One possibility is to use a word such as billion to describe a thousand million: "I'm going to miss him when he goes to college." Another possibility is to use a phrase such as one trillion ("one thousand million"), which some people find difficult to say out loud. Yet another possibility is to use a symbol; although this practice is not common in writing about numbers this large.

There are various symbols that can be used to represent very large numbers. The most commonly used ones are listed below. Each of these symbols can be used at any place where a digit of magnitude larger than 0 would otherwise be required. For example, a value of 1012 could be written as 1E12 or 1e+12.

A single asterisk (*) indicates that there should be enough zeros inserted to make the number fit on the page.