Ralph Ernest Powers

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 $M 89$ and $M 107$ , in 1911 and 1914 respectively. In 1934 he verified that the Mersenne number $M 241$ is composite.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.