Derrick Henry Lehmer
E748746
Derrick Henry Lehmer was an American mathematician renowned for his pioneering work in number theory and the development of early computational methods and machines for prime number and factorization research.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Derrick Henry Lehmer canonical | 2 |
| Derrick Norman Lehmer | 2 |
| Lehmer | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8657103 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Derrick Henry Lehmer Context triple: [Ronald L. Graham, doctoralAdvisor, Derrick Henry Lehmer]
-
A.
Frank Nelson Cole
Frank Nelson Cole was an American mathematician known for his work in number theory and for famously factoring large numbers by hand, with a prestigious algebra prize later established in his honor.
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B.
Carl Pomerance
Carl Pomerance is an American mathematician renowned for his contributions to number theory, particularly in computational number theory and primality testing.
-
C.
Harold Davenport
Harold Davenport was a prominent 20th-century British mathematician renowned for his contributions to number theory and his influential role as a doctoral advisor to many leading mathematicians.
-
D.
John Charles Fields
John Charles Fields was a Canadian mathematician best known for founding and endowing the Fields Medal, one of the most prestigious awards in mathematics.
-
E.
Philip J. Davis
Philip J. Davis was an American mathematician and prolific author known for his influential works on numerical analysis, the history and philosophy of mathematics, and popular mathematical writing.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Derrick Henry Lehmer Target entity description: Derrick Henry Lehmer was an American mathematician renowned for his pioneering work in number theory and the development of early computational methods and machines for prime number and factorization research.
-
A.
Frank Nelson Cole
Frank Nelson Cole was an American mathematician known for his work in number theory and for famously factoring large numbers by hand, with a prestigious algebra prize later established in his honor.
-
B.
Carl Pomerance
Carl Pomerance is an American mathematician renowned for his contributions to number theory, particularly in computational number theory and primality testing.
-
C.
Harold Davenport
Harold Davenport was a prominent 20th-century British mathematician renowned for his contributions to number theory and his influential role as a doctoral advisor to many leading mathematicians.
-
D.
John Charles Fields
John Charles Fields was a Canadian mathematician best known for founding and endowing the Fields Medal, one of the most prestigious awards in mathematics.
-
E.
Philip J. Davis
Philip J. Davis was an American mathematician and prolific author known for his influential works on numerical analysis, the history and philosophy of mathematics, and popular mathematical writing.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
American mathematician
ⓘ
human ⓘ mathematician ⓘ |
| awardReceived |
Cole Prize in Number Theory
ⓘ
linked to:
Frank Nelson Cole Prize in Number Theory
|
| birthDate | 1905-02-23 ⓘ |
| birthPlace | Berkeley, California, United States ⓘ |
| contributedTo | development of computational methods in number theory ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| deathDate | 1991-05-22 ⓘ |
| deathPlace | Berkeley, California, United States ⓘ |
| doctoralAdvisor | M. H. Ingraham ⓘ |
| doctoralStudent | Emma Trotskaia Lehmer ⓘ |
| educatedAt | University of California, Berkeley ⓘ |
| employer | University of California, Berkeley ⓘ |
| era | 20th-century mathematics ⓘ |
| familyName |
Lehmer
ⓘ
linked to:
Derrick Henry Lehmer
|
| fieldOfWork |
computational number theory
ⓘ
mathematics ⓘ number theory ⓘ |
| gender | male ⓘ |
| givenName | Derrick ⓘ |
| hasAcademicDiscipline |
computational mathematics
ⓘ
pure mathematics ⓘ |
| influenced | computational number theory ⓘ |
| influencedBy |
Derrick Norman Lehmer
ⓘ
linked to:
Derrick Henry Lehmer
|
| knownFor |
Lehmer sieve
ⓘ
Lehmer's method for finding zeros of the Riemann zeta function ⓘ early mechanical and electro-mechanical computing devices for number theory ⓘ tables of prime numbers and factors ⓘ |
| languageSpoken | English ⓘ |
| memberOf | American Mathematical Society ⓘ |
| name | Derrick Henry Lehmer ⓘ |
| notableFor |
development of early computational devices for number theory
ⓘ
work on factorization methods ⓘ work on prime numbers ⓘ |
| notableWork |
Factor Stencils and the Lehmer Sieve
ⓘ
linked to:
Lehmer sieve
Guide to Tables in the Theory of Numbers ⓘ Tables of the Lucasian and Fermatian Numbers ⓘ |
| parent |
Derrick Norman Lehmer
ⓘ
linked to:
Derrick Henry Lehmer
|
| positionHeld | professor of mathematics at the University of California, Berkeley ⓘ |
| researchInterest |
Diophantine equations
ⓘ
Riemann zeta function ⓘ factorization ⓘ prime numbers ⓘ |
| spouse | Emma Trotskaia Lehmer ⓘ |
| workLocation | Berkeley, California, United States ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Derrick Henry Lehmer Description of subject: Derrick Henry Lehmer was an American mathematician renowned for his pioneering work in number theory and the development of early computational methods and machines for prime number and factorization research.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Derrick Henry Lehmer
linked to: Derrick Henry Lehmer
linked to: Derrick Henry Lehmer