# Willem Klein

> Willem Klein, also known as Wim Klein or under his stage names Pascal and Willy Wortel, was a Dutch mental calculator, famous for ability to perform very complicated calculations in his head very fast. On 27 August 1976, he calculated the 73rd root of a 500-digit number in 2 minutes and 43 seconds. This feat was recorded by the Guinness Book of Records.

*Dutch mental calculator (1912–1986)*

**Canonical URL:** https://fame.am/person/willem-klein

## Identity
- **Profile type:** Academic ([Wikidata](https://www.wikidata.org/entity/Q39631))
- **Category:** Academics
- **Born:** 1912-12-04
- **Died:** 1986-08-01
- **Status:** deceased
- **Gender:** male

## Bio

Imported from discovery source: wikidata-dump

## Fame
- **Popularity score:** 46.2 / 100
- **Momentum:** 9.2 / 100  (trend: RISING)
- **Historical depth:** 9.1 / 100
- **Now attention:** 0.0 / 100
- **Source confidence:** 55.0 / 100
- **Profile completeness:** 45.0 / 100

## Sources
- [Клейн, Виллем](https://ru.wikipedia.org/wiki/%D0%9A%D0%BB%D0%B5%D0%B9%D0%BD%2C_%D0%92%D0%B8%D0%BB%D0%BB%D0%B5%D0%BC)
- [ويليم كلاين](https://ar.wikipedia.org/wiki/%D9%88%D9%8A%D9%84%D9%8A%D9%85_%D9%83%D9%84%D8%A7%D9%8A%D9%86)
- [فيليم كلاين](https://arz.wikipedia.org/wiki/%D9%81%D9%8A%D9%84%D9%8A%D9%85_%D9%83%D9%84%D8%A7%D9%8A%D9%86)
- [Willem Klein](https://de.wikipedia.org/wiki/Willem_Klein)
- [Willem Klein](https://en.wikipedia.org/wiki/Willem_Klein)
- [Willem Klein](https://es.wikipedia.org/wiki/Willem_Klein)
- [Wim Klein](https://fr.wikipedia.org/wiki/Wim_Klein)
- [וילם קליין](https://he.wikipedia.org/wiki/%D7%95%D7%99%D7%9C%D7%9D_%D7%A7%D7%9C%D7%99%D7%99%D7%9F)
- [Willem Klein](https://it.wikipedia.org/wiki/Willem_Klein)
- [Willem Klein](https://nl.wikipedia.org/wiki/Willem_Klein)
- [Wikidata](https://www.wikidata.org/wiki/Q2069856)

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