# PlummersSoftwareLLC/Primes

Prime number projects in 100+ programming languages, to compare their speed - and their programmer's cleverness

Repository: https://github.com/PlummersSoftwareLLC/Primes
Canonical: https://ross.abutalabs.com/products/primes
Homepage: https://plummerssoftwarellc.github.io/PrimeView/
Language: C
License Family: other
Topics: programming-languages, drag-race, primes, primesieve, benchmarks, docker, benchmark
Last push: 2026-07-01T04:13:12+00:00

## Health v2 (maintenance only)
Score: 73/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 90, release rhythm 35, longevity 100
- inputs: {"age_days": 1990, "days_push": 63, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3017, forks 605 (observed 2026-08-28T04:07:38.368164+00:00)

## What it is
A community-maintained collection of prime number sieve implementations in 100+ programming languages, used to benchmark and compare language runtime performance. It includes automated build and daily benchmark tooling plus a companion web app (PrimeView) for exploring results.

## Use cases
- compare performance of programming languages
- benchmark sieve of eratosthenes implementations
- find prime sieve code in a specific language
- learn how the same algorithm is written across languages
- contribute a prime sieve implementation in a new language
- view cross-language benchmark results

## When to choose
- you want to compare runtime speed of many programming languages on the same algorithm
- you want reference implementations of prime sieves in a specific language
- you want a fun community project to contribute a language implementation to

## When to avoid
- you need production-grade prime generation or number theory libraries
- you need rigorous, statistically controlled language benchmarks
- you need a general-purpose benchmarking framework for your own code

## Facets
- artifact type: dataset
- maturity: active
- function: benchmarking, programming-language, developer-tools
- domain: programming-languages, performance, developer-tools
- platform: cross-platform, cli
- tags: prime-numbers, sieve-of-eratosthenes, language-comparison, drag-race, community-contributed, algorithms, docker

## Member repositories
- PlummersSoftwareLLC/Primes (main) score 73

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:38.368164+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:30:03.092143+00:00, confidence not recorded.
  - readme: https://github.com/PlummersSoftwareLLC/Primes (fetched 2026-08-28T04:07:38.368164+00:00, sha d46dfbfb21a4)
  - homepage: https://plummerssoftwarellc.github.io/PrimeView/ (fetched 2026-08-29T09:45:11.716882+00:00, sha fc800b89bbc8)
- Data as of 2026-08-30T08:39:29.467469+00:00.