Who is Eratosthenes? All i know is that he has something to do with math, i think prime numbers.?

Answer 1

http://en.wikipedia.org/wiki/Eratosthenes

Answer 2

Eratosthenes was among many things a Greek Mathematician, and is known for inventing what is now known as the Sieve of Eratosthenes, a method used to find Prime Numbers by eliminating multiples of known primes.

Answer 3

Eratosthenes (erutos'thunēz) [key], c.275–c.195 B.C., Greek scholar, b. Cyrene. A pupil of Callimachus in Athens, he became (c.240 B.C.) head of the library at Alexandria. Known for his versatility, he wrote poetry and works (most of them lost) on literature, the theater (notably on ancient comedy), mathematics, astronomy, geography, and philosophy; he also drew a map of the known world and evolved a system of chronology. Especially noted as an astronomer, he is credited with measuring the circumference and tilt of the earth and the size and distance from the earth of the sun and the moon.

Answer 4

Eratosthenes was a famous Greek mathematician but he was also a well known geographer, astronomer and historian. He also was the person who accurately measured the circumference of the earth.