is_prime {primes}

Test for Prime Numbers

Description

Test whether a vector of numbers is prime or composite.

Usage

is_prime(x)

Arguments

x

an integer vector containing elements to be tested for primality.

Value

A logical vector.

Author(s)

Os Keyes and Paul Egeler, MS

Examples

is_prime(4:7)
## [1] FALSE  TRUE FALSE  TRUE

is_prime(1299827)
## [1] TRUE