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1 − 2 + 4 − 8 + ⋯

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1 − 2 + 4 − 8 + ⋯

Summary

1 − 2 + 4 − 8 + ⋯ is a divergent series[1]. 1 − 2 + 4 − 8 + ⋯ draws 15 Wikipedia views per month (divergent_series category, ranking #3 of 4).[2]

Key Facts

  • 1 − 2 + 4 − 8 + ⋯'s instance of is recorded as divergent series[3].
  • 1 − 2 + 4 − 8 + ⋯'s Freebase ID is recorded as /m/02pxlz5[4].
  • 1 − 2 + 4 − 8 + ⋯'s defining formula is recorded as \sum_{n=0}^\infty(-2)^n[5].
  • 1 − 2 + 4 − 8 + ⋯'s maintained by WikiProject is recorded as WikiProject Mathematics[6].
  • 1 − 2 + 4 − 8 + ⋯'s power series expansion is recorded as \sum_{n=0}^\infty {(-2)}^n = 1 - 2 + 4 - 8 + \cdots + {(-2)}^n + \cdots[7].

Why It Matters

1 − 2 + 4 − 8 + ⋯ draws 15 Wikipedia views per month (divergent_series category, ranking #3 of 4).[2] 1 − 2 + 4 − 8 + ⋯ has Wikipedia articles in 8 language editions, a strong signal of global cultural recognition.[8] 1 − 2 + 4 − 8 + ⋯ is known by 9 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] ↑ . Freebase Data Dumps. wikidata.org.
  3. [5] ↑ . 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 + 4 − 8 + ⋯. Retrieved May 3, 2026, from https://4ort.xyz/entity/1-2-4-8-q1064181
MLA “1 − 2 + 4 − 8 + ⋯.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/1-2-4-8-q1064181.
BibTeX @misc{4ortxyz_1-2-4-8-q1064181_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{1 − 2 + 4 − 8 + ⋯}}, year = {2026}, url = {https://4ort.xyz/entity/1-2-4-8-q1064181}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 1 − 2 + 4 − 8 + ⋯ — https://4ort.xyz/entity/1-2-4-8-q1064181 (retrieved 2026-05-03)

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