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1 − 2 + 3 − 4 + · · ·

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1 − 2 + 3 − 4 + · · ·

Summary

1 − 2 + 3 − 4 + · · · is a divergent series[1]. 1 − 2 + 3 − 4 + · · · draws 108 Wikipedia views per month (divergent_series category, ranking #2 of 4).[2]

Key Facts

  • 1 − 2 + 3 − 4 + · · ·'s image is recorded as Pm1234 Ground.png[3].
  • 1 − 2 + 3 − 4 + · · ·'s instance of is recorded as divergent series[4].
  • 1 − 2 + 3 − 4 + · · ·'s Freebase ID is recorded as /m/02ppmhq[5].
  • 1 − 2 + 3 − 4 + · · ·'s defining formula is recorded as \sum_{n=1}^{\infty} n(-1)^{n-1}[6].
  • 1 − 2 + 3 − 4 + · · ·'s maintained by WikiProject is recorded as WikiProject Mathematics[7].

Why It Matters

1 − 2 + 3 − 4 + · · · draws 108 Wikipedia views per month (divergent_series category, ranking #2 of 4).[2] 1 − 2 + 3 − 4 + · · · has Wikipedia articles in 26 language editions, a strong signal of global cultural recognition.[8] 1 − 2 + 3 − 4 + · · · is known by 77 alternative names across languages and contexts.[9]

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] ↑ . Freebase Data Dumps. wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [8] ↑ . Wikidata sitelinks. wikidata.org.
  3. [9] ↑ . 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). 1 − 2 + 3 − 4 + · · ·. Retrieved May 3, 2026, from https://4ort.xyz/entity/1-2-3-4-q438859-2
MLA “1 − 2 + 3 − 4 + · · ·.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/1-2-3-4-q438859-2.
BibTeX @misc{4ortxyz_1-2-3-4-q438859-2_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{1 − 2 + 3 − 4 + · · ·}}, year = {2026}, url = {https://4ort.xyz/entity/1-2-3-4-q438859-2}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 1 − 2 + 3 − 4 + · · · — https://4ort.xyz/entity/1-2-3-4-q438859-2 (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/1-2-3-4-q438859-2 · Last refreshed: