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A number is a mathematical object used to count, measure, and label. The most basic examples are the natural numbers 1, 2, 3, 4, and so forth. Numbers...

years have lauded A Number, arguing Churchill created a work of significant intellectual depth with effective economy of style. A Number was first produced...

A prime number (or a prime) is a natural number greater than 1 that is not a product of two smaller natural numbers. A natural number greater than 1 that...

Number theory (or arithmetic or higher arithmetic in older usage) is a branch of pure mathematics devoted primarily to the study of the integers and arithmetic...

numbering scheme follows that of the International Numbering System (INS) as determined by the Codex Alimentarius committee, though only a subset of the...

number sign, hash, or pound sign. The symbol has historically been used for a wide range of purposes including the designation of an ordinal number and...

Testament as the "number of the beast." 666 is the sum of the first thirty-six natural numbers, which makes it a triangular number: ∑ i = 1 36 i = 1 +...

In fluid dynamics, the Reynolds number (Re) is a dimensionless quantity that helps predict fluid flow patterns in different situations by measuring the...

N Is a Number: A Portrait of Paul Erdős is a 1993 biographical documentary about the life of mathematician Paul Erdős, directed by George Paul Csicsery...

natural number following 999 and preceding 1001. In most English-speaking countries, it can be written with or without a comma or sometimes a period separating...

Book Number (ISBN) is a numeric commercial book identifier that is intended to be unique. Publishers purchase or receive ISBNs from an affiliate of the...

In mathematics, a complex number is an element of a number system that extends the real numbers with a specific element denoted i, called the imaginary...

atomic number or nuclear charge number (symbol Z) of a chemical element is the charge number of an atomic nucleus. For ordinary nuclei composed of protons...

The following are lists of films which have been placed number one at the weekend box office in a region. Contents 1948–1959 1960–1969 1970–1979 1980–1989...

hundred [and] sixty-nine) is the natural number following 368 and preceding 370. 369 is the magic constant of the 9 × 9 magic square and the n-Queens Problem...

Age Ain't Nothing but a Number is the debut studio album by American singer Aaliyah. It was released on May 24, 1994, by Blackground Records and Jive Records...

A telephone number is a sequence of digits assigned to a landline telephone subscriber station connected to a telephone line or to a wireless electronic...

natural number following 19 and preceding 21. A group of twenty units may be referred to as a score. Twenty is a pronic number, as it is the product of consecutive...

sum of three squares, 50 = 32 + 42 + 52, and the sum of four squares, 50 = 62 + 32 + 22 + 12. It is a Harshad number. 50 is a Stirling number of the first...

In number theory, a perfect number is a positive integer that is equal to the sum of its positive proper divisors, that is, divisors excluding the number...