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What is «factorization» in mathematics?

mathematics
theory
glossary
(Dmitry Fedyuk) #1

In mathematics, factorization or factoring consists of writing a number or another mathematical object as a product of several factors, usually smaller or simpler objects of the same kind.

For example, 3 × 5 is a factorization of the integer 15, and (x – 2)(x + 2) is a factorization of the polynomial x2 – 4.

en.wikipedia.org/wiki/Factorization

What is a matrix «decomposition» («factorization»)?