factor factor function

## Syntax

    [y]=factor(x)

## Arguments

x

  real scalar

y

  vector of primes numbers

## Description

Given a real `x`, `factor(x)` returns in a vector `y` the primes numbers decomposition of `x`. Particular cases: `factor(0)` returns `0`, and `factor(1)` returns `1`.

## Examples

    x=620
    y=factor(x)

## See also

- primes