Factor
1 program
Added 2025-10-22T10:07:50Z
Model: meta-llama/llama-3.1-70b-instructTemp: 0.4
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Aliases: Factor programming language, Factor (programming language), factor
Provenance: commit 5be00851e5 · authored 2025-10-22T12:07:50+02:00 · model meta-llama/llama-3.1-70b-instruct
Merged records (3)
Sources describe this language in separate records, kept as they are. They were
joined by explicit decisions in data/curated/pl_links.csv
(concept concept/repo/Factor); names of merged pages are listed as aliases above.
- Factor
repo/Factor· this page · primary · sources: llm-campaign · evidenceL-b2093e9222same_aspl/factor-programming-language: accepted (generic-qualifier, claude-opus-5-5, 2026-09-30) - factor
pl/factor· record without its own page · sources: esolang, hyperpolyglot, linguist, pldb, pygments, rosettacode · Wikipedia · Q1391724 · Esolang · PLDBL-0046d8cc14same_aspl/factor-programming-language: accepted (generic-qualifier, claude-opus-5-5, 2026-09-30) — Accepted for the mainstream Factor record. Caveat: pl/factor also carries Esolang page 'Factor' (a 2020 cell-based language by User:Bangyen), a different language merged by name upstream. - Factor (programming language)
pl/factor-programming-language· had its own page, merged here · sources: hyperpolyglot, pygments, wikipedia · Wikipedia · Q1391724L-0046d8cc14same_aspl/factor: accepted (generic-qualifier, claude-opus-5-5, 2026-09-30) — Accepted for the mainstream Factor record. Caveat: pl/factor also carries Esolang page 'Factor' (a 2020 cell-based language by User:Bangyen), a different language merged by name upstream.L-b2093e9222same_asrepo/Factor: accepted (generic-qualifier, claude-opus-5-5, 2026-09-30)
Sources mentioning this language
9 sources · pl_id:
pl/factorWikipedia infobox ↗
Pulled from the
wikimedia/structured-wikipedia
snapshot — see data/raw/wikipedia_pl_facts.*.jsonl and
pl_fact.csv for the long-table provenance.
| Paradigms | multi-paradigm: concatenative (stack-based) · functional · object-oriented |
|---|---|
| Typing | strong, dynamic |
| Designed by | Slava Pestov |
| First appeared | 2003 |
| Influenced by | Joy · Forth · Lisp · Self |
| License | BSD license |
| Homepage | http://factorcode.org/ |
Extensions claimed by this language
2 claims. Each row is one upstream assertion with its strength.
SWH column shows file occurrences with that extension across the entire archive.| Extension | Source | Strength | SWH |
|---|---|---|---|
.factor | linguist | primary | 171.9K files |
.factor | pygments | primary | 171.9K files |
Related languages
Real programs from Software Heritage
No SWH evidence indexed yet for this language. (Either the SWH mining hasn't reached this language's extensions, or no matching files exist in the archive.)
Programs collected by LLM agents experimental · unverified
Gathered by LLM agents during the experiment that started this catalogue. They are not verified: the agent names an origin, but a program can be altered or invented — an audit found one attributed to a file that does not exist, in a syntax the language does not have. Prefer the programs archived by Software Heritage above. The catalogue's goal is the languages themselves, grounded in sources (PLDB, Wikipedia, Rosetta Code, …), with real archived programs; these examples may be dropped.
Hello World
Provenance: commit 5be00851e5 · authored 2025-10-22T12:07:50+02:00 · model meta-llama/llama-3.1-70b-instruct · Temp 0.4
USING: kernel ;
IN: hello
: hello ( -- )
"Hello, world!" print ;
MAIN: hello