Calculate and return the nth prime number

This function will use the primes package unless it either is missing, or if options("zulutils.zerodeps") has been explicitly set to false, in which case it will use a local implementation of the sieve of Erastosthenes.

Usage

nth_prime(n)

Arguments

n

the position of the prime number to be calculated

Value

the nth prime number

Examples

nth_prime(1) # 2
#> [1] 2
nth_prime(10) # 29
#> Loading required namespace: primes
#> [1] 29
nth_prime(100) # 541
#> [1] 541
nth_prime(1000) # 7919
#> [1] 7919
nth_prime(10000) # 104729
#> [1] 104729