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0.999...

alternative decimal expansion of 1
Thing repeating_decimal Q713113
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0.999...

Summary

0.999... is a repeating decimal[1]. 0.999... draws 1,101 Wikipedia views per month (repeating_decimal category, ranking #1 of 1).[2]

Key Facts

  • 0.999...'s image is recorded as 999 Perspective.svg[3].
  • 0.999...'s instance of is recorded as repeating decimal[4].
  • 0.999...'s Commons category is recorded as 0.999…[5].
  • 0.999...'s said to be the same as is recorded as 1[6].
  • 0.999...'s Freebase ID is recorded as /m/060w9t[7].
  • 0.999...'s topic's main category is recorded as Category:0.999…[8].
  • 0.999...'s Commons gallery is recorded as 0.999...[9].
  • 0.999...'s spoken text audio is recorded as En-0.999...-article.oga[10].
  • 0.999...'s numeric value is recorded as {'amount': '+1'}[11].
  • 0.999...'s BabelNet ID is recorded as 01095112n[12].
  • 0.999...'s Brilliant Wiki ID is recorded as is-0999-equal-1[13].
  • 0.999...'s ProofWiki ID is recorded as 0.999...=1[14].
  • 0.999...'s RationalWiki ID is recorded as 0.999...[15].
  • 0.999...'s Namuwiki ID is recorded as 0.999…=1[16].

Why It Matters

0.999... draws 1,101 Wikipedia views per month (repeating_decimal category, ranking #1 of 1).[2] 0.999... has Wikipedia articles in 29 language editions, a strong signal of global cultural recognition.[17] 0.999... is known by 43 alternative names across languages and contexts.[18]

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] ↑ . Freebase Data Dumps. 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.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [17] ↑ . Wikidata sitelinks. wikidata.org.
  3. [18] ↑ . 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). 0.999.... Retrieved May 3, 2026, from https://4ort.xyz/entity/0-999
MLA “0.999....” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/0-999.
BibTeX @misc{4ortxyz_0-999_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{0.999...}}, year = {2026}, url = {https://4ort.xyz/entity/0-999}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 0.999... — https://4ort.xyz/entity/0-999 (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/0-999 · 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. 14d ago · KrBot bot · 2026-05-06 view diff on Wikidata ↗
    Instance of → repeating decimal
    Aliases → —
    Said to be the same as → 1
    Topic's main category → Category:0.999…
    + 3 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaimvalue:1| */ [[Property:P31]]: [[Q16317911]], разрешение перенаправления / resolving redirect [[Q28920044]] → [[Q16317911]] ([[:toollabs:editgroups/b/KrBotResolvingRedirect/Q28920044_Q1631"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.