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#

“number” sign (U+0023), “pound“ sign (weight), “hashtag“, “hash“, “crosshatch“ or “octothorpe“: symbol used as the cardinal of a set in set theory, or as the connected sum of manifolds in topology; for denoting a musical “sharp“, U+266F is preferred
Place unicode_character Q87495542
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Summary

is an Unicode character[1]. # is known by 15 alternative names across languages and contexts.[2]

Key Facts

  • 's instance of is recorded as Unicode character[3].

  • 's depicts is recorded as sharp[4].

  • 's depicts is recorded as checkmate[5].

  • 's depicts is recorded as primorial[6].

  • 's depicts is recorded as number sign[7].

  • is used for program comment[8].

  • is used for hashtag[9].

  • 's Commons category is recorded as U+0023[10].

  • 's homoglyph is recorded as ℔[11].

  • 's homoglyph is recorded as ⌗[12].

  • 's homoglyph is recorded as ♯[13].

  • 's Unicode code point is recorded as 0023[14].

  • 's HTML entity is recorded as #[15].

  • 's HTML entity is recorded as #[16].

  • 's HTML entity is recorded as #[17].

  • 's Unicode block is recorded as Basic Latin[18].

  • 's Unicode character name is recorded as NUMBER SIGN[19].

Body

Designation and Status

's instance of is recorded as Unicode character[3].

Why It Matters

is known by 15 alternative names across languages and contexts.[2]

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.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . 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). #. Retrieved May 3, 2026, from https://4ort.xyz/entity/--q87495542
MLA “#.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/--q87495542.
BibTeX @misc{4ortxyz_--q87495542_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{#}}, year = {2026}, url = {https://4ort.xyz/entity/--q87495542}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): # — https://4ort.xyz/entity/--q87495542 (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/--q87495542 · 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. 21d ago · Verdy p · 2026-09-03 view diff on Wikidata ↗
    Wikidata description → “number” sign (U+0023), “pound“ sign (weight), “hashtag“, “hash“, “crosshatch“ o
    Has use → program comment, hashtag
    Depicts → sharp, checkmate, primorial +1
    "/* wbremoveclaims-remove:1| */ [[Property:P180]]: [[Q278485]]"
  2. 7w ago · Verdy p · 2026-08-06 view diff on Wikidata ↗
    Unicode character name → NUMBER SIGN
    Glyphwiki id → u0023, u0023-sans
    Unicode block → Basic Latin
    Depicts → sharp, checkmate, primorial +1
    + 11 other properties edited (see Wikidata diff for full list)
    "/* wbremoveclaims-remove:1| */ [[Property:P487]]: #"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.