What is kilo, mega, giga, tera ... ?
In the Metric mechanism there space standard methods to talk about huge and small numbers:
"kilo" because that a thousand, "mega" because that a million, and an ext ...
Example: A long rope procedures one thousand meters
It is much easier to to speak it is 1 kilometer long,
and even easier to write it under as 1 km.
You are watching: 10,000,000,000,000,000,000
So we provided kilo in prior of the word meter to make "kilometer".
And the abbreviation is "km" (k because that kilo and m because that meter, placed together).
Some an ext examples:
Example: You placed your bag ~ above a collection of scales and also it shows 2000 grams, us can contact that 2 kilograms, or simply 2 kg.

Example: Teaspoon
A teaspoon hold 5 thousandths the a liter (51000 of a liter), but it is much better to speak "5 milliliters", or create it just as 5 mL.
So, using the prefix "milli" in front of "liter" creates a brand-new word "milliliter".
Here us list the prefix for commonly used big and small numbers:
Common big and tiny Numbers
trillion | 1,000,000,000,000 | tera | T |
billion | 1,000,000,000 | giga | G |
million | 1,000,000 | mega | M |
thousand | 1,000 | kilo | k |
hundred | 100 | hecto | h |
ten | 10 | deka | da |
unit | 1 | ||
tenth | 0.1 | deci | d |
hundredth | 0.01 | centi | c |
thousandth | 0.001 | milli | m |
millionth | 0.000 001 | micro | µ |
billionth | 0.000 000 001 | nano | n |
trillionth | 0.000 000 000 001 | pico | p |
Just remember for big values (each one a thousand times bigger):
"kilo mega giga tera"
and for little values (each one a thousand time smaller):
"milli micro nano pico"
Try To do Some Yourself!
exactly how do you refer to a million liters? How about one billionth the a meter?See the bottom the this web page for more questions to an obstacle yourself ...
How large Are They?
There is a many difference in between them. Think in regards to time:
A longer list:
A thousand secs is around a quarter of one hour A million secs is about 12 days A billion secs is around 32 years, practically half a lifetime A trillion seconds is about 32,000 years (the last Ice period finished 12,000 years ago)Much Bigger and Smaller
There are likewise prefixes for lot bigger and also smaller numbers:
Some very Big, and also Very small Numbers
Very large ! | |||
septillion | 1,000,000,000,000,000,000,000,000 | yotta | Y |
sextillion | 1,000,000,000,000,000,000,000 | zetta | Z |
quintillion | 1,000,000,000,000,000,000 | exa | E |
quadrillion | 1,000,000,000,000,000 | peta | P |
Very tiny ! | |||
quadrillionth | 0.000 000 000 000 001 | femto | f |
quintillionth | 0.000 000 000 000 000 001 | atto | a |
sextillionth | 0.000 000 000 000 000 000 001 | zepto | z |
septillionth | 0.000 000 000 000 000 000 000 001 | yocto | y |
![]() | Also seeLengths From an extremely Smallto really Large |
All huge Numbers we Know
Thousand | 103 | 1,000 |
Million | 106 | 1,000,000 |
Billion | 109 | 1,000,000,000 |
Trillion | 1012 | 1,000,000,000,000 |
Quadrillion | 1015 | etc ... |
Quintillion | 1018 | |
Sextillion | 1021 | |
Septillion | 1024 | |
Octillion | 1027 | |
Nonillion | 1030 | |
Decillion | 1033 | |
Undecillion | 1036 | |
Duodecillion | 1039 | |
Tredecillion | 1042 | |
Quattuordecillion | 1045 | |
Quindecillion | 1048 | |
Sexdecillion | 1051 | |
Septemdecillion | 1054 | |
Octodecillion | 1057 | |
Novemdecillion | 1060 | |
Vigintillion | 1063 | 1 followed by 63 zeros! |
And a Googol is 1 complied with by one hundred zeros (10100) :
10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000
Then there is the Googolplex. That is 1 complied with by Googol zeros. I can"t also write down the number, due to the fact that there is not enough matter in the world to kind all the zeros:
10,000,000,000,000,000,000,000,000,000,000, ... (Googol number of Zeros)
And a Googolplexian is a 1 complied with by Googolplex zeros. Wow.
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thousandths | 10-3 | 0.001 |
millionths | 10-6 | 0.000 001 |
billionths | 10-9 | 0.000 000 001 |
trillionths | 10-12 | etc ... |
quadrillionths | 10-15 | |
quintillionths | 10-18 | |
sextillionths | 10-21 | |
septillionths | 10-24 | |
octillionths | 10-27 | |
nonillionths | 10-30 | |
decillionths | 10-33 | |
undecillionths | 10-36 | |
duodecillionths | 10-39 | |
tredecillionths | 10-42 | |
quattuordecillionths | 10-45 | |
quindecillionths | 10-48 | |
sexdecillionths | 10-51 | |
septemdecillionths | 10-54 | |
octodecillionths | 10-57 | |
novemdecillionths | 10-60 | |
vigintillionths | 10-63 |