Riesel may refer to:

People

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  • Hans Riesel (1929–2014), Swedish mathematician who discovered a Mersenne prime
  • Victor Riesel (1913–1995), American labor union journalist

In Mathematics

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  • Riesel number, an odd natural number k for which the integers of the form k·2n−1 are all composite
  • Riesel Sieve, a project to prove the smallest Riesel number

Places

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