The divisors (or factors) of a positive integer are the integers that evenly divide it. For example, the divisors of 28 are 1, 2, 4, 7, 14 and 28.

A positive proper divisor is a positive divisor of a number n, excluding n itself. For example, 1, 2, and 3 are positive proper divisors of 6, but 6 itself is not. The number of ...

Mathematicians love all sorts of odd properties of numbers. For instance, they consider 945 to be an interesting number, since it is the first odd number for which the sum of its ...

These tasks provided the participants with the opportunity to explore concepts related to elementary number theory, such as factors, divisors, divisibility, prime numbers, and ...

In algebraic geometry, divisors are a generalization of subvarieties of algebraic varieties; two different generalizations are in common use, Cartier divisors and Weil divisors (named for Pierre Cartier and André Weil). The concepts agree on non-singular varieties over algebraically closed fields.

For price and ordering options, inspection copy requests, and reading lists please select: Europe, Middle East and Africa | Americas | Asia | Australia and New Zealand

A divisor of a number n is a number d which divides n (written d|n), also called a factor. A list of divisors of a given number n may be returned by the Mathematica command ...

For example, the positive divisors of 42 are 1, 2, 3, 6, 7, 14, 21, 42. In general, we say m | n (read: m divides n) for non-zero integers m and n iff there exists an integer k such that n ...

Divisors[<i&g t;n</i>] (67 formulas) ... 1998-2008 Wolfram Research, Inc.

Welcome to the Prime Glossary: a collection of definitions, information and facts all related to prime numbers. This pages contains the entry titled 'number of divisors.