Derrick Norman Lehmer
| Derrick Norman Lehmer | |
|---|---|
| Born | July 27, 1867 Somerset, Indiana, United States | 
| Died | September 8, 1938 (aged 71) Berkeley, California, United States | 
| Education | University of Nebraska University of Chicago | 
| Occupation | Mathematician | 
| Spouse | Clara Eunice Mitchell | 
| Children | 5, including Derrick Henry | 
Derrick Norman Lehmer (27 July 1867 – 8 September 1938) was an American mathematician and number theorist.