R Observatory: Metrics for primes version 1.6.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

primes

1.6.1

Fast Functions for Prime Numbers

2packages depend

17.9Kdownloads / year

90.1%test coverage

13/13checks pass

Overview

About

Maintained by Paul EgelerFirst published 2015-06-2210 releasesCRAN page ↗GitHub ↗

Fast functions for dealing with prime numbers, such as testing whether a number is prime and generating a sequence prime numbers. Additional functions include finding prime factors and Ruth-Aaron pairs, finding next and previous prime numbers in the series, finding or estimating the nth prime, estimating the number of primes less than or equal to an arbitrary number, computing primorials, prime k-tuples (e.g., twin primes), finding the greatest common divisor and smallest (least) common multiple, testing whether two numbers are coprime, and computing Euler's totient function. Most functions are vectorized for speed and convenience.

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("primes", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("ironholds/primes")

Development version from ironholds/primes. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-primes

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-primes

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-primes

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 3.2 min · r-devel-windows-x86_64

Code health

Yes

Tests · ratio 0.43

90.1%

Coverage · measured lines

100%

Documentation · exports

1

Dependencies · direct

Check history

OK2026-08-05
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-04-22
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 174 wordsVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 91%
Return-value docs: 91%
References docs: 17%

Downloads

17.9K

CRAN downloads in the past year

Rank #3,390 · ~49/day · ~1.5K/mo

Releases R versions

Daily download trend is not available in this view yet.

1.2K30 days

3K90 days

17.9K1 year

Compare downloads with other packages →

Also on429 r2u24 autocran50 c2d4u

Repository

GitHub ↗ ironholds/primes

10Stars

2Forks

1Open issues

1Open PRs

0Releases

88Commits

4Contributors

88 commits · Last activity 2024-01-16

Stars over time

2024-12-18 · 102026-07-07 · 10

Repository practices

Upstream repositoryBeta

7 development-tooling and community-health practices detected across 5 families in the upstream repository

Checks run against github.com/ironholds/primes on 2026-08-23.

Continuous integration (3)

GitHub ActionsTravis CIAppVeyor

Reproducibility and dev environment (1)

data-raw/

CRAN release process (1)

cran-comments.md

Lint, format, editor (1)

RStudio project

Show all practices

Git structural (1)

.gitattributes

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.0

Imports (1)

Rcpp

LinkingTo (1)

Rcpp

Suggests (1)

testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

2direct

0indirect

LISTO SFDesign

Code & Tests

Datasets

People & History

People (2)

Maintainer (1)

Paul Egeler

Author, Maintainer · added in 0.2.0

Authors (2)

Paul Egeler

Author, Maintainer · added in 0.2.0

Os Keyes

Author · added in 0.2.0

Listed in earlier versions (1)

Oliver Keyes

no longer listed · 0.1.0

Package Timeline

10 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
1.6.1Latest
2025-02-04 · current release · diff ↗
R
R 4.4.0 released · 2024-04-24
1.6.0
2024-01-09 · diff ↗
1.5.2
2023-12-19 · diff ↗
1.5.1
2023-11-08 · diff ↗
unarchivedReturned to CRAN
2023-11-08
archivedRemoved from CRAN
2023-11-06
issues were not corrected despite reminders
1.5.0
2023-10-08 · diff ↗
R
R 4.3.0 released · 2023-04-21
1.4.0
2022-09-12 · diff ↗
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
1.1.0
2020-09-03 · diff ↗
1.0.0
2020-07-29 · diff ↗

Show 8 earlier events

0.2.0
2020-07-27 · diff ↗
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
0.1.0
2015-06-22
R
R 3.2.0 released · 2015-04-16

Package metadata

First published: 2015-06-22
Total releases: 10 / 11 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 4.0
Bundled data: 0.9 KB / 1 file
Download size: 22 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Numerical Mathematics

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("primes")

Format

Egeler, P., & Keyes, O. (2025). primes: Fast Functions for Prime Numbers (Version 1.6.1) [Computer software]. https://doi.org/10.32614/CRAN.package.primes

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for primes version 1.6.1 [Data set]. HJJB, LLC. Data release v2026-08-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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