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	binto-	b
10−36	1×10−36	One One-Undecillionth	One One-Sextillionth	urto-	u
0	1×10−∞	Zero
–1	–1	Negative One
−∞	undefined	Negative Infinity

See also

• Mathematics portal

• Names of large numbers
• Number names
• Numeral prefix
• Metric prefix

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. (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.