is_prime {Rrepest} | R Documentation |
Check if a number is prime
Description
To check if a number n is prime, you only need to check for factors up to the square root of n. This is because if n has a factor greater than its square root, it must also have a smaller factor (since a factor is a number that divides n without leaving a remainder). This method significantly reduces the number of checks needed to determine if a number is prime.
Usage
is_prime(n)
Arguments
n |
(numeric) Number to verify if it prime |
Value
(bool) TRUE if the number is prime, FALSE if the number is not prime
Examples
is_prime(0)
is_prime(1)
is_prime(7)
is_prime(10)
is_prime(100011869)
[Package Rrepest version 1.5.4 Index]