Phrase guide

Erdős number

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

A number describing the degree of collaboration between a mathematician and Paul Erdős, defined such that a mathematician who has written a paper with Erdős has an Erdős number of 1, a mathematician who has written a paper with somebody having an Erdős number of 1 has an Erdős number of two, and so on.

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Named after Hungarian mathematician Paul Erdős.

Across languages

Translations

6 source translations are retained for this English entry.

  • German: Erdős-Zahl — mathematics
  • Hungarian: Erdős-szám — mathematics
  • Portuguese: número de Erdös — mathematics
  • Romanian: număr Erdős — mathematics
  • Russian: число́ Э́рдёша (čisló Érdjoša) — mathematics
  • Swedish: Erdőstal — mathematics