Derrick Norman Lehmer
Mathematician, Deceased Person
1867 – 1938
Who was Derrick Norman Lehmer?
Derrick Norman Lehmer was an American mathematician and number theorist.
He was educated at the University of Nebraska, obtaining a bachelor's degree in 1893 and master's in 1896. Lehmer was awarded his Ph.D. from the University of Chicago in 1900 for a thesis Asymptotic Evaluation of Certain Totient-Sums under the supervision of E. H. Moore. He was appointed instructor in mathematics at the University of California at Berkeley in 1900 and married Clara Eunice Mitchell on 12 July 1900 in Decatur, Illinois. He was promoted to professor at Berkeley in 1918 and continued to teach there until retiring in 1937.
In 1903, he presented a factorization of Jevons' number at the San Francisco Section of the American Mathematical Society, December 19, 1903.
He published tables of prime numbers and prime factorizations, reaching 10,017,000 by 1909. He developed a variety of mechanical and electro-mechanical factoring and computational devices, such as the Lehmer sieve, built with his son Derrick Henry Lehmer.
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- Born
- Jul 27, 1867
Somerset - Children
- Nationality
- United States of America
- Profession
- Education
- University of Chicago
- Employment
- University of California, Berkeley
- Died
- Sep 8, 1938
Berkeley
Submitted
on July 23, 2013
Citation
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