Eratosthenes (276-194 B.C.)

Credit: http://en.wikipedia.org/wiki/Eratosthenes
article: Basic Searching for Prime Numbers
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Eratosthenes (276-194 B.C.) Figure 1. Scheme andSieve
Eratosthenes (276-194 B.C.), http://en.wikipedia.org/wiki/Eratosthenes