What is number?

• (verb): Put into a group.
Synonyms: count

Number

A number is a mathematical object used to count, label, and measure. In mathematics, the definition of number has been extended over the years to include such numbers as zero, negative numbers, rational numbers, irrational numbers, and complex numbers.

Some articles on number:

496 (number) - In Mathematics
496 is most notable for being a perfect number, and one of the earliest numbers to be recognized as such ... As a perfect number, it is tied to the Mersenne prime 31, 25 - 1, with 24 ( 25 - 1 ) yielding 496 ... Also related to its being a perfect number, 496 is a harmonic divisor number, since the number of proper divisors of 496 divided by the sum of the ...
Natural Logarithm - Origin of The Term natural Logarithm
... But mathematically, the number 10 is not particularly significant ... many societies’ numbering systems—likely arises from humans’ typical number of fingers ... As an example, there are a number of simple series involving the natural logarithm ...
38 (number)
... This article discusses the number thirty-eight ... disambiguation) ← 39 ... → 38 ← 39 ... → List of numbers — Integers 90 ... → Cardinal thirty-eight Ordinal 38th (thirty-eighth) Factorization Divisors ...
39 (number) - In Other Fields
... fact fall in the thirty-ninth position The retired jersey number of former baseball player Roy Campanella The book series "The 39 Clues" revolves around 39 clues hidden around the world ... History The number of signers to the United States Constitution, out of 55 members of the Philadelphia Convention delegates The traditional number of times citizens of Ancient Rome hit their slaves ... Internet chat slang for "thank you" when written with numbers (3=san 9=kyu) Pier 39 in San Francisco The number of the French department Jura In Afghanistan, the number 39 is considered unlucky, due to the belief ...
39 (number) - In Mathematics
39 is the smallest natural number which has three partitions into three parts which all give the same product when multiplied {25, 8, 6}, {24, 10, 5}, {20, 15 ... The thirteenth Perrin number is 39, which comes after 17, 22, 29 (it is the sum of the first two mentioned) ... which is obviously more than 39 twice, 39 is a Størmer number ...

More definitions of "number":

• (noun): The grammatical category for the forms of nouns and pronouns and verbs that are used depending on the number of entities involved (singular or dual or plural).
Example: "In English the subject and the verb must agree in number"
• (verb): Place a limit on the number of.
Synonyms: keep down
• (noun): A symbol used to represent a number.
Synonyms: numeral
• (noun): A clothing measurement.
Example: "A number 13 shoe"
• (verb): Give numbers to.
Example: "You should number the pages of the thesis"
• (noun): An item of merchandise offered for sale.
Example: "She preferred the black nylon number"; "this sweater is an all-wool number"
• (noun): A concept of quantity derived from zero and units.
Example: "Every number has a unique position in the sequence"
• (verb): Enumerate.
Example: "We must number the names of the great mathematicians"
Synonyms: list
• (noun): A short theatrical performance that is part of a longer program.
Synonyms: act, routine, turn, bit
• (noun): One of a series published periodically.
Synonyms: issue
• (noun): A numeral or string of numerals that is used for identification.
Example: "She refused to give them her Social Security number"
Synonyms: identification number
• (noun): A select company of people.
Example: "I hope to become one of their number before I die"
• (noun): The property possessed by a sum or total or indefinite quantity of units or individuals.
Example: "He had a number of chores to do"; "the number of parameters is small"
Synonyms: figure

Famous quotes containing the word number:

This nightmare occupied some ten pages of manuscript and wound off with a sermon so destructive of all hope to non-Presbyterians that it took the first prize. This composition was considered to be the very finest effort of the evening.... It may be remarked, in passing, that the number of compositions in which the word “beauteous” was over-fondled, and human experience referred to as “life’s page,” was up to the usual average.
Mark Twain [Samuel Langhorne Clemens] (1835–1910)

Ah, but to play man number one,
To drive the dagger in his heart,
To lay his brain upon the board
And pick the acrid colors out,
To nail his thought across the door,
Its wings spread wide to rain and snow,
To strike his living hi and ho....
Wallace Stevens (1879–1955)

It is not the number of years we have behind us, but the number we have before us, that makes us careful and responsible and determined to find out the truth about everything.
George Bernard Shaw (1856–1950)