| John Brillhart | |
| Birth Name: | John David Brillhart |
| Birth Date: | 13 November 1930 |
| Birth Place: | Berkeley, California |
| Fields: | Mathematics |
| Workplaces: | University of Arizona |
| Alma Mater: | University of California |
| Doctoral Advisor: | D. H. Lehmer |
| Known For: | Continued fraction factorization |
John David Brillhart (November 13, 1930 – May 21, 2022) was a mathematician who worked in number theory at the University of Arizona.
Brillhart was born on November 13, 1930, in Berkeley, California.[1] [2]
He studied at the University of California, Berkeley, where he received his A.B. in 1953, his M.A. in 1966, and his Ph.D. in 1967.[1] His doctoral thesis in mathematics was supervised by D. H. Lehmer, with assistance from Leonard Carlitz.[1]
Before becoming a mathematician, he served in the United States Army.[1]
Brillhart joined the faculty at the University of Arizona in 1967 and retired in 2001.[1] He advised two Ph.D. students.[1]
F7=
| 27 | |
| 2 |
+1
Brillhart was a member of the Cunningham Project, which factors Mersenne, Fermat, and related numbers.[1] He was also a founding member and financial contributor to the Number Theory Foundation started by John L. Selfridge.[1]