Fermat number

positive integer of the form (2^(2^n))+1
Thing lucas_sequence Q207264
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Fermat number

Summary

Fermat number is a Lucas sequence[1]. It draws 206 Wikipedia views per month (lucas_sequence category, ranking #2 of 4).[2]

Key Facts

  • Fermat number's instance of is recorded as Lucas sequence[3].
  • Pierre de Fermat is named after Fermat number[4].
  • Fermat number's GND ID is recorded as 4672709-7[5].
  • Fermat number's subclass of is recorded as positive integer[6].
  • Fermat number's subclass of is recorded as Cunningham number[7].
  • Fermat number's Freebase ID is recorded as /m/0mm8d[8].
  • Fermat number's NL CR AUT ID is recorded as ph195830[9].
  • Fermat number's OEIS ID is recorded as A000215[10].
  • Fermat number's topic's main category is recorded as Q9945775[11].
  • Fermat number's facet of is recorded as constructible polygon[12].
  • Fermat number's Encyclopædia Britannica Online ID is recorded as topic/Fermat-prime[13].
  • Fermat number's defining formula is recorded as F_n = 2^{2^n}+1[14].
  • Fermat number's MathWorld ID is recorded as FermatNumber[15].
  • Fermat number's nLab ID is recorded as Fermat number[16].
  • Fermat number's maintained by WikiProject is recorded as WikiProject Mathematics[17].
  • Fermat number's Microsoft Academic ID is recorded as 171223647[18].
  • Fermat number's in defining formula is recorded as F_n[19].
  • Fermat number's in defining formula is recorded as n[20].
  • Fermat number's Online PWN Encyclopedia ID is recorded as 3900479[21].
  • Fermat number's National Library of Israel J9U ID is recorded as 987007532614505171[22].
  • Fermat number's Lex ID is recorded as Fermat-tal[23].
  • Fermat number's Group Properties article ID is recorded as Fermat_number[24].
  • Fermat number's OpenAlex ID is recorded as C171223647[25].

Why It Matters

Fermat number draws 206 Wikipedia views per month (lucas_sequence category, ranking #2 of 4).[2] It has Wikipedia articles in 26 language editions, a strong signal of global cultural recognition.[26] It is known by 26 alternative names across languages and contexts.[27]

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] . Freebase Data Dumps. 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] . National Library of Israel Names and Subjects Authority File. Retrieved . wikidata.org.
  21. [23] . wikidata.org.
  22. [24] . wikidata.org.
  23. [25] . OpenAlex. Retrieved . docs.openalex.org. Provenance: wikidata.org.

Class ancestry

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

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [26] . Wikidata sitelinks. wikidata.org.
  3. [27] . 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). Fermat number. Retrieved May 3, 2026, from https://4ort.xyz/entity/fermat-number
MLA “Fermat number.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/fermat-number.
BibTeX @misc{4ortxyz_fermat-number_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Fermat number}}, year = {2026}, url = {https://4ort.xyz/entity/fermat-number}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Fermat number — https://4ort.xyz/entity/fermat-number (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/fermat-number · 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. 15d ago · KrBot bot · 2026-05-06 view diff on Wikidata ↗
    Subclass of
    Subclass of positive integer, Cunningham number
    Maintained by wikiproject WikiProject Mathematics
    Topic's main category Q9945775
    + 6 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaimvalue:1| */ [[Property:P279]]: [[Q16317911]], разрешение перенаправления / resolving redirect [[Q28920044]] → [[Q16317911]] ([[:toollabs:editgroups/b/KrBotResolvingRedirect/Q28920044_Q163"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.