| 词条 | Ralph Ernest Powers |
| 释义 |
Ralph Ernest Powers (April 27, 1875 – January 31, 1952) was an American amateur mathematician who worked on prime numbers. He is credited with discovering the Mersenne primes {{math|M89}} and {{math|M107}}, in 1911 and 1914 respectively.[1][2] In 1934 he verified that the Mersenne number {{math|M241}} is composite.[3] LifeDetails of his life are little-known,[4] though he appears to have been an employee of the Denver and Rio Grande Western Railroad.[5] Soon after Powers announced the discovery of {{math|M107}}, the Frenchman E. Fauquembergue claimed that he had discovered it earlier, but many of Fauquembergue's other claims were later demonstrated as erroneous; thus, many prefer recognizing Powers as the discoverer, including the well-known Internet resource The Prime Pages. Works
See also
References1. ^{{cite journal |journal=American Mathematical Monthly |title=The Tenth Perfect Number |author=R. E. Powers |volume= 18 |year=1911 |pp=195–7 |jstor=2972574 |quote=The article is signed "DENVER, COLORADO, June, 1911" |doi=10.2307/2972574}} 2. ^http://plms.oxfordjournals.org/content/s2-13/1/1.1.full.pdf Proc. London Math. Soc. (1914) s2–13 (1): 1. Result presented at a meeting with London Mathematical Society on June 11, 1914. Retrieved 2016-04-17. 3. ^{{cite journal |journal=Bulletin of the American Mathematical Society |title=Note on a Mersenne Number |author=R. E. Powers |volume= 40 |year=1934 |page=883 |doi=10.1090/s0002-9904-1934-05994-9}} 4. ^Obituary by D. H. Lehmer 5. ^{{cite book|author=Hugh C. Williams|title=Edouard Lucas and Primality Testing|url=https://books.google.com/books?id=9MxmRntmJF4C|year=1998|publisher=Wiley|isbn=978-0-471-14852-4}} External links
3 : 1875 births|1952 deaths|Number theorists |
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