primes

Prime numbers less than or equal to input value

Syntax

p = primes(n)

Description

p = primes(n) returns a row vector containing all the prime numbers less than or equal to n. The data type of p is the same as that of n.

Examples

Primes Less Than or Equal to 25

p = primes(25)

p = 1×9

     2     3     5     7    11    13    17    19    23

Primes Less Than or Equal to an Unsigned Integer

n = uint16(12);
p = primes(n)

p = 1×5 uint16 row vector

    2    3    5    7   11

Input Arguments

n — Input value

scalar, real integer value

Input value, specified as a scalar that is a real integer value.

Example: 10

Example: int16(32)

Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64

Extended Capabilities

C/C++ Code Generation

Generate C and C++ code using MATLAB® Coder™.

Usage notes and limitations:

• The maximum double precision input is 2^32.

• The maximum single precision input is 2^24.

• The input n cannot have type int64 or uint64.

Thread-Based Environment

Run code in the background using MATLAB® backgroundPool or accelerate code with Parallel Computing Toolbox™ ThreadPool.

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

Version History

Introduced before R2006a