Names of small numbers

This is a list of the names of small decimal numbers in English.

Table

The following table lists the names of small numbers used in the long and short scales, along with the power of 10, engineering notation, and International System of Units (SI) symbols and prefixes.[1][page needed] [2][page needed] [3][page needed] [4][5][6][7]

Power
of
ten 		Engineering
notation
[citation needed] 		Short scale
(U.S. and
modern British) 		Long scale
(continental Europe,
archaic British, and India) 		SI
prefix 		SI
symbol
100 1 One
10−1 100×10−3 One Tenth deci- d
10−2 10×10−3 One One-Hundredth centi- c
10−3 1×10−3 One One-Thousandth milli- m
10−6 1×10−6 One One-Millionth micro- μ
10−9 1×10−9 One One-Billionth One One-Milliardth nano- n
10−12 1×10−12 One One-Trillionth One One-Billionth pico- p
10−15 1×10−15 One One-Quadrillionth One One-Billiardth femto- f
10−18 1×10−18 One One-Quintillionth One One-Trillionth atto- a
10−21 1×10−21 One One-Sextillionth One One-Trilliardth zepto- z
10−24 1×10−24 One One-Septillionth One One-Quadrillionth yocto- y
10−27 1×10−27 One One-Octillionth One One-Quardilliardth ronto- r
10−30 1×10−30 One One-Nonillionth One One-Quintillionth quecto- q
10−33 1×10−33 One One-Decillionth One One-Quintilliardth — —
10−36 1×10−36 One One-Undecillionth One One-Sextillionth — —
0 1×10−∞ Zero
–1 –1 Negative One
−∞ undefined Negative Infinity

See also

References

  1. ^ American Heritage Dictionary, 4th edition, ISBN 0-395-82517-2. "The American Heritage Dictionary of the English Language, Fourth Edition. 2000". Archived from the original on 2007-01-12. Retrieved 2004-05-29.
  2. ^ Oxford English Dictionary, New Edition, Oxford, UK: Oxford University Press. [1] (subscription required)
  3. ^ Bureau International des Poids et Mesures (BIPM)
  4. ^ "Metric (SI) Prefixes". NIST. 13 January 2010.
  5. ^ "Large and Small Numbers - Metric Prefixes". 2012-08-26. Archived from the original on 2013-07-24. Retrieved 2014-07-07.
  6. ^ Savidtra (2013-07-01). "Big & Small Numbers". ThinkQuest. Archived from the original on 2012-11-11. Retrieved 2014-07-07.
  7. ^ Manske, Magnus (2011-05-02). "Names of large and small numbers". Archived from the original on 2011-09-03. Retrieved 2014-07-07.