D. H. Lehmer refers to Derrick Henry Lehmer (1905–1997), a prominent American mathematician known for his contributions to number theory, particularly in the areas of prime numbers, factorization, and computational mathematics. Lehmer is best known for developing algorithms for efficiently factoring large numbers and for his work on the computation of the distribution of prime numbers. He also created the Lehmer sieve and contributed to the development of the modern theory of primality testing.
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