1991

natural number
Intangible positive_integer Q860678
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1991

Summary

1991 is a positive integer[1]. 1991 draws 1 Wikipedia views per month (positive_integer category, ranking #183 of 724).[2]

Key Facts

  • 1991's instance of is recorded as positive integer[3].
  • 1991's instance of is recorded as odd number[4].
  • 1991's instance of is recorded as composite number[5].
  • 1991's Commons category is recorded as 1991 (number)[6].
  • 1991's numeric value is recorded as {'amount': '+1991'}[7].
  • 1991's BabelNet ID is recorded as 14940770n[8].
  • 1991's code is recorded as MCMXCI[9].
  • 1991's KIT Linked Open Numbers ID is recorded as 1991[10].
  • 1991's prime factor is recorded as 11[11].
  • 1991's prime factor is recorded as 181[12].
  • 1991's maintained by WikiProject is recorded as WikiProject Mathematics[13].
  • 1991's number of decimal digits is recorded as {'amount': '+4'}[14].
  • 1991's factordb ID is recorded as 1991[15].

Why It Matters

1991 draws 1 Wikipedia views per month (positive_integer category, ranking #183 of 724).[2] 1991 has Wikipedia articles in 5 language editions, a strong signal of global cultural recognition.[16] 1991 is known by 8 alternative names across languages and contexts.[17]

References

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

Direct Wikidata claims

  1. [3] . wikidata.org.
  2. [4] . wikidata.org.
  3. [5] . wikidata.org.
  4. [6] . wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [16] . Wikidata sitelinks. wikidata.org.
  3. [17] . 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). 1991. Retrieved May 3, 2026, from https://4ort.xyz/entity/1991-q860678
MLA “1991.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/1991-q860678.
BibTeX @misc{4ortxyz_1991-q860678_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{1991}}, year = {2026}, url = {https://4ort.xyz/entity/1991-q860678}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 1991 — https://4ort.xyz/entity/1991-q860678 (retrieved 2026-05-03)

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