## Eratosthenes of Cyrene (c.276–c.195 BC)Among his many other accomplishments, he accurately measured the tilt of Earth's axis and the distance to the Sun and Moon, and devised a method for finding all the prime numbers up to a given number (the sieve of Eratosthenes). ## Related categories• ASTRONOMERS AND ASTROPHYSICISTS• MATHEMATICIANS • GREEK ASTRONOMY | ||||||

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