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# Paul Erdős

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Paul Erdős | |
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Born |
March 26, 1913 Budapest, Hungary |

Died |
September 20, 1996 Warsaw, Poland |

Residence |
Hungary United Kingdom United States Israel, then itinerant |

Nationality | Hungarian |

Fields | Mathematics |

Institutions |
Princeton Purdue Notre Dame Then itinerant |

Alma mater | University of Pázmány Péter |

Doctoral advisor | Leopold Fejér |

Doctoral students |
Bonifac Donat Joseph Kruskal Alexander Soifer |

Known for |
Combinatorics Graph theory Number theory |

Notable awards |
Wolf Prize (1983/84) AMS Cole Prize (1951) |

**Paul Erdős**, also **Pál Erdős**, in English **Paul Erdos** or **Paul Erdös** (March 26, 1913 – September 20, 1996), was a famous Hungarian-born mathematician. He worked with hundreds of mathematicians on problems in combinatorics, graph theory, number theory, classical analysis, approximation theory, set theory, and probability theory.

## Erdős number

Because he wrote so many articles, friends created **Erdős number**. Erdős has a number of 0 (for being himself), and his direct collaborators were given the number 1. Their collaborators were given a number of 2, an so on.

The Erdős number was most likely first defined by Casper Goffman, a mathematician whose Erdős number is 1.

## Other websites

- Erdős number project[[Category:Mathematicians