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561

natural number
Intangible positive_integer Q1095151
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Summary

561 is a positive integer[1]. 561 has Wikipedia articles in 13 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • Instance of: odd number[3], triangular number[4], centered icosahedral number[5], dodecagonal number[6], hexagonal number[7], composite number[8], Carmichael number[9]
  • Commons category: 561 (number)[10]
  • Numeric value: 561[11]
  • Code: 231[12], ๕๖๑[13], ৫৬১[14], DLXI[15], ५६१[16], 1000110001[17], ૫૬૧[18], ௫௱௬௰௧[19], ௫௬௧[20], · · · · · − · · · · · − − − −[21], ៥៦១[22], ೫೬೧[23], ໕໖໑[24], ൫൬൧[25]
  • Prime factor: 3[26], 11[27], 17[28]
  • Maintained by WikiProject: WikiProject Mathematics[29]
  • Number of decimal digits: 3[30]

Why It Matters

561 is known by 17 alternative names across languages and contexts.[31]

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.
  14. [16] ↑ . wikidata.org.
  15. [17] ↑ . wikidata.org.
  16. [18] ↑ . wikidata.org.
  17. [19] ↑ . wikidata.org.
  18. [20] ↑ . 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.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata sitelinks. wikidata.org.
  2. [31] ↑ . 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). 561. Retrieved October 13, 2026, from https://4ort.xyz/entity/561-q1095151
MLA “561.” 4ort.xyz Knowledge Graph, 4ort.xyz, 13 Oct. 2026, https://4ort.xyz/entity/561-q1095151.
BibTeX @misc{4ortxyz_561-q1095151_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{561}}, year = {2026}, url = {https://4ort.xyz/entity/561-q1095151}, note = {Accessed: 2026-10-13}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 561 — https://4ort.xyz/entity/561-q1095151 (retrieved 2026-10-13)

Canonical URL: https://4ort.xyz/entity/561-q1095151 · 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. 12d ago · MsynBot bot · 2026-10-03 view diff on Wikidata ↗
    Wikipedia languages → ['ar', 'ckb', 'commons', 'cs', 'da', 'eml', 'en', 'fr', 'ht', 'hu', 'io', 'it',
    Claims rich → —
    "/* wbeditentity-update:0| */ remove badge intentional sitelink to redirect from enwiki sitelink; sitelink points to a non-redirect page #msynbotTask10"
  2. 22w ago · MatSuBot bot · 2026-05-09 view diff on Wikidata ↗
    Number of decimal digits → {'amount': '+3'}
    Maintained by wikiproject → WikiProject Mathematics
    Aliases → —
    Numeric value → {'amount': '+561'}
    + 3 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaimvalue:1| */ Instance of: positive integer, fix redirect positive integer → positive integer ([[:toollabs:editgroups/b/CB/43bf22167717|details]])"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.