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PROGRAM:

NAME


primesieve - an efficient program (and C/C++ library) for generating slices of prime
numbers

SYNOPSIS


primesieve [START] STOP [OPTION]...

DESCRIPTION


Generate the primes and/or prime k-tuplets in the interval [START, STOP] (< 2^64) using
the segmented sieve of Eratosthenes.

OPTIONS


-c[N+], --count[=N+]
Count primes and prime k-tuplets, 1 <= N <= 6 N: 1 = primes, 2 = twins, 3 =
triplets, ...

-d<N>, --dist=<N>
Sieve the interval [START, START + N]

-h, --help
Print this help menu

-n, --nthprime
Calculate the nth prime, e.g. 1 100 -n finds the 1st prime > 100

-p[N], --print[=N]
Print primes or prime k-tuplets, 1 <= N <= 6 N: 1 = primes, 2 = twins, 3 =
triplets, ...

-q, --quiet
Quiet mode, prints less output

-s<N>, --size=<N>
Set the sieve size in kilobytes, 1 <= N <= 2048

--test Run various sieving tests and exit

-t<N>, --threads=<N>
Set the number of threads, 1 <= N <= CPU cores

--time Print the time elapsed in seconds

-v, --version
Print version and license information

EXAMPLES


Print the primes below 1000000 $ primesieve 1e6 --print

Count the twin primes inside [10^9, 10^9 + 2^32] $ primesieve 1e9 --dist=2**32 -c2

COPYRIGHT


Copyright © 2015 Kim Walisch BSD 2-Clause License
<http://opensource.org/licenses/BSD-2-Clause>

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