4-408: Riesel may refer to: People [ edit ] Hans Riesel (1929–2014), Swedish mathematician who discovered a Mersenne prime Victor Riesel (1913–1995), American labor union journalist In Mathematics [ edit ] Riesel number , an odd natural number k for which the integers of the form k ·2−1 are all composite Riesel Sieve ,
8-681: A larger one. Riesel also discovered the Riesel numbers as well as developing the Lucas–Lehmer–Riesel test . After having worked at the Swedish Board for Computing Machinery , he was awarded his Ph.D. from Stockholm University in 1969 for his thesis Contributions to numerical number theory , and in the same year joined the Royal Institute of Technology as a senior lecturer and associate professor. This article about
12-582: A project to prove the smallest Riesel number Places [ edit ] Riesel, Texas Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title Riesel . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Riesel&oldid=701090800 " Categories : Disambiguation pages Disambiguation pages with surname-holder lists Hidden categories: Short description
16-492: Is different from Wikidata All article disambiguation pages All disambiguation pages Hans Riesel Hans Ivar Riesel (May 28, 1929 in Stockholm – December 21, 2014) was a Swedish mathematician who discovered the 18th Mersenne prime in 1957 using the computer BESK : 2 -1, comprising 969 digits. He held the record for the largest known prime from 1957 to 1961, when Alexander Hurwitz discovered
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