zepto

prefix denoting 10 to the −21st power
Thing si_prefix Q110807
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zepto

Summary

zepto is a SI prefix[1]. zepto draws 8 Wikipedia views per month (si_prefix category, ranking #22 of 23).[2]

Key Facts

  • zepto's instance of is recorded as SI prefix[3].
  • zepto's instance of is recorded as UCUM prefix[4].
  • zepto's follows is recorded as yocto[5].
  • zepto's followed by is recorded as atto-[6].
  • zepto's time of discovery or invention is recorded as +1991-00-00T00:00:00Z[7].
  • zepto's Freebase ID is recorded as /m/01cz0l[8].
  • zepto's numeric value is recorded as {'amount': '+0.000000000000000000001'}[9].
  • zepto's different from is recorded as zetta[10].
  • zepto's defining formula is recorded as 10^{-21}[11].
  • zepto's wurvoc.org measure ID is recorded as zepto[12].
  • zepto's Great Norwegian Encyclopedia ID is recorded as zepto[13].
  • zepto's IUPAC Gold Book ID is recorded as Z06740[14].
  • zepto's unit symbol is recorded as {'lang': 'mul', 'text': 'z'}[15].
  • zepto's World of Physics ID is recorded as Zepto[16].
  • zepto's maintained by WikiProject is recorded as WikiProject Mathematics[17].
  • zepto's Microsoft Academic ID is recorded as 2777978859[18].
  • zepto's ProofWiki ID is recorded as Definition:Metric_System/Scaling_Prefixes/zepto-[19].
  • zepto's Wolfram Language unit code is recorded as "Zepto"[20].
  • zepto's UCUM code is recorded as z[21].
  • zepto's Lex ID is recorded as zepto-[22].
  • zepto's IEV number is recorded as 112-02-19[23].
  • zepto's Namuwiki ID is recorded as 젭토[24].
  • zepto's Great Russian Encyclopedia portal ID is recorded as zepto-d5307c[25].
  • zepto's FOLDOC ID is recorded as zepto[26].

Body

Works and Contributions

Things named for zepto include zeptosecond[27], an unit of time[28].

Why It Matters

zepto draws 8 Wikipedia views per month (si_prefix category, ranking #22 of 23).[2] zepto has Wikipedia articles in 23 language editions, a strong signal of global cultural recognition.[29] zepto is known by 14 alternative names across languages and contexts.[30]

Entities named for zepto include zeptosecond[27], an unit of time[28].

References

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

Direct Wikidata claims

  1. [3] . ISO 80000-1:2009 Quantities and units—Part 1: General. wikidata.org.
  2. [4] . wikidata.org.
  3. [5] . ISO 80000-1:2009 Quantities and units—Part 1: General. wikidata.org.
  4. [6] . ISO 80000-1:2009 Quantities and units—Part 1: General. wikidata.org.
  5. [7] . bipm.org. bipm.org. Provenance: wikidata.org.
  6. [8] . Freebase Data Dumps. wikidata.org.
  7. [9] . bipm.org. bipm.org. Provenance: wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . ISO 80000-1:2009 Quantities and units—Part 1: General. wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . ISO 80000-1:2009 Quantities and units—Part 1: General. 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.

Inverse relationships (entities pointing at this one)

  1. [27] . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [28] . Wikidata. wikidata.org. → on this site

Class ancestry

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

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [29] . Wikidata sitelinks. wikidata.org.
  3. [30] . 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). zepto. Retrieved May 3, 2026, from https://4ort.xyz/entity/zepto
MLA “zepto.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/zepto.
BibTeX @misc{4ortxyz_zepto_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{zepto}}, year = {2026}, url = {https://4ort.xyz/entity/zepto}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): zepto — https://4ort.xyz/entity/zepto (retrieved 2026-05-03)

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