# Thousand

A thousand, written as 1,000, is a natural number that follows the number 999, and precedes the number 1,001. It can also be written as 10^{3}, in scientific notation as 1 × 10^{3}, or in a number of other ways, such as roman numerals. In writing, a thousand is also sometimes denoted with a "k":

- 1k = 1,000
- 10k = 10,000
- 100k = 100,000

The "k" can be seen as adding three 0's to the number it is attached to. It is also sometimes used as follows:

- 1kk = 1,000,000
- 1kkk = 1,000,000,000

The k equals 10^{3}, so "kk" is read as multiplying 10^{3} × 10^{3}.

When talking about measurements, such as kilometers, or the abbreviated version km, the "k" means the same thing as described above. It indicates one thousand, the same way that kilogram, kg, indicates 1,000 grams.

Example

What is 1,000 ÷ 1kk × 100k × 10?

1,000 ÷ 1,000,000 × 100,000 × 10 = 1,000 or 1k