factor

Prime factors

Syntax

f = factor(n)

f = factor(n) returns a row vector containing the prime factors of n. Vector f is of the same data type as n.

f = factor(200)

f = 1×5

     2     2     2     5     5

Multiply the elements of f to reproduce the input value.

prod(f)

ans = 
200

n = uint16(138);
f = factor(n)

f = 1x3 uint16 row vector

    2    3   23

Multiply the elements of f to reproduce n.

prod(f)

ans = 
138

Input value, specified as a real, nonnegative integer scalar.

Example: 10

Example: int16(64)

Usage notes and limitations:

This function fully supports thread-based environments. For more information, see Run MATLAB Functions in Thread-Based Environment.

Introduced before R2006a