# Composite Number

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## composite number

[kəm′päz·ət ′nəm·bər]
(mathematics)
Any positive integer which is not prime. Also known as composite quantity.

## Composite Number

a natural number that is not prime. In other words, a composite number is a natural number that has divisors other than 1 and itself. For example, 4, 18, and 105 are composite numbers. Every composite number can be uniquely represented as a product of prime factors. (SeeDIVISIBILITY.)

References in periodicals archive ?
Either this number is a prime number or this number is a composite number, By using this method, the found number can be assumed as whether this number is a prime number or not.
The second experiment focused on conceptual and procedural knowledge of prime and composite numbers.
This conversation raised interesting ideas about factors, an essential idea for understanding prime and composite numbers, and set the stage for the n ext exploration.
Below is a table of all composite numbers less than 20 classified into abundant (A),defective (D) and perfect (P).
In this unit we are learning about prime and composite numbers, so we are doing an investigation called Multiplying Prime Numbers.
Composite numbers have at least two factors which are not itself or 1.
Before proceeding, we must highlight that there will be a class of primes with an infinite Smarandache P-persistence; that is, primes that will never collapse in a composite number.
To begin, Juraschek would construct a worksheet to guide Ryan to discover that every composite number can be expressed as the product of primes.
Moreover, New European Schemes for Signatures, Integrity, and Encryption (NESSIE) has declared that to factor a 1,536-bit composite number, computational complexity that is approximately equivalent to that needed to do an exhaustive search of 80-bit key is required.
Meanwhile, mathematicians developed a version of the number field sieve that can be used for factoring any composite number.
The benchmark generates results for graphics, CPU and disk I/O operations, as well as a composite number for total system performance.
The metric is a composite number derived by averaging peak performance throughput with the results from adding warehouses one at a time until there are twice as many warehouses as server processors.

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