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Factor

programming language
Place programming_language Q1391724
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Summary

Factor is a programming language[1]. Factor draws 366 Wikipedia views per month (programming language category, ranking #115 of 742).[2]

Key Facts

  • Influenced by: Joy[3], Forth[4], Lisp[5], Self[6]
  • Developer: Slava Pestov[7]
  • Copyright license: BSD licenses[8]
  • Programmed in: Factor[9]
  • Designed by: Slava Pestov[10]
  • Software version identifier: 0.98[11], 0.99[12], 0.94[13], 0.95[14], 0.96[15], 0.97[16], 0.100[17], 0.101[18], 0.102[19]
  • Inception: January 1, 2003[20]
  • Official website: https://factorcode.org[21]
  • Readable file format: Factor source code file[22]
  • Writable file format: Factor source code file[23]
  • Source code repository URL: https://github.com/factor/factor[24]
  • Programming paradigm: multi-paradigm programming[25], functional programming[26], concatenative programming[27], stack-oriented programming[28]
  • Copyright status: copyrighted[29]
  • Typing discipline: strong typing[30], dynamic typing[31]

Why It Matters

Factor has Wikipedia articles in 11 language editions, a strong signal of global cultural recognition.[32] Factor is known by 11 alternative names across languages and contexts.[33]

Related Entities

Factor Forth Joy Lisp programming language Self Slava Pestov

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [7] ↑ . wikidata.org.
  2. [8] ↑ . wikidata.org.
  3. [9] ↑ . openhub.net. openhub.net. Provenance: wikidata.org.
  4. [10] ↑ . wikidata.org.
  5. [11] ↑ . github.com. github.com. Provenance: wikidata.org.
  6. [12] ↑ . github.com. github.com. Provenance: wikidata.org.
  7. [13] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  8. [14] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  9. [15] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  10. [16] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  11. [17] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  12. [18] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  13. [19] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  14. [20] ↑ . wikidata.org.
  15. [3] ↑ . wikidata.org.
  16. [4] ↑ . wikidata.org.
  17. [5] ↑ . wikidata.org.
  18. [6] ↑ . wikidata.org.
  19. [21] ↑ . wikidata.org.
  20. [22] ↑ . wikidata.org.
  21. [23] ↑ . wikidata.org.
  22. [24] ↑ . wikidata.org.
  23. [25] ↑ . wikidata.org.
  24. [26] ↑ . wikidata.org.
  25. [27] ↑ . wikidata.org.
  26. [28] ↑ . wikidata.org.
  27. [29] ↑ . wikidata.org.
  28. [30] ↑ . wikidata.org.
  29. [31] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [32] ↑ . Wikidata sitelinks. wikidata.org.
  3. [33] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Factor. Retrieved October 17, 2026, from https://4ort.xyz/entity/factor-q1391724
MLA “Factor.” 4ort.xyz Knowledge Graph, 4ort.xyz, 17 Oct. 2026, https://4ort.xyz/entity/factor-q1391724.
BibTeX @misc{4ortxyz_factor-q1391724_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Factor}}, year = {2026}, url = {https://4ort.xyz/entity/factor-q1391724}, note = {Accessed: 2026-10-17}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Factor — https://4ort.xyz/entity/factor-q1391724 (retrieved 2026-10-17)

Canonical URL: https://4ort.xyz/entity/factor-q1391724 · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 4d ago · Github-wiki-bot bot · 2026-10-14 view diff on Wikidata ↗
    Freebase id → /m/03m7hp
    Instance of → —
    Open hub id → —
    Chocolatey community package id → factor
    + 41 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-statements-single-property-update:1||2 */ Software version identifier, Update with GitHub data ([[:toollabs:editgroups/b/CB/ab0aba4f480a|details]])"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.