primes {npsf} | R Documentation |
Provides prime numbers.
primes(n = NULL, which = NULL, random.primes = FALSE, seed = 7)
n |
number of prime numbers to be returned. Should be smaller than 100008. |
which |
numeric. if specific prime numbers are requred. See examples. |
random.primes |
logical. if |
seed |
set seed for replicability. Default is 17345168. |
primes
just returns prime numbers, which come from https://primes.utm.edu/lists/small/100000.txt, see https://primes.utm.edu
primes
returns prime numbers.
Oleg Badunenko <oleg.badunenko@brunel.ac.uk>
https://primes.utm.edu/lists/small/100000.txt and https://primes.utm.edu
require( npsf )
# obtain first 30 prime numbers
npsf::primes( 30 )
# the same as
npsf::primes( n = 30 )
# the result in both case above are 30 prime numbers
# if we use
npsf::primes( which = 30 )
# the 30th prime is returns, just a scalar
# both cannot be used
# npsf::primes(n = 30, which = 30, random.primes = FALSE, seed = 17345168)
# will give a mistake
# you can get random 30 primes, use seed for replicability
npsf::primes(n = 30, random.primes = TRUE, seed = 17345168)
# obtain specific primes: which take order number(s)
npsf::primes(which = c(3,67,30, 100008))