Eratosthenes lived between 276 and 194 B.C. He didn't discover prime numbers; he devised a simple way to determine what numbers are prime in a given range.
The Sieve of Eratosthenes filters numbers, letting the composites fall through while the primes remain.
Eratosthenes
In programming: They let you do generic calculations, with numbers that you don't know in advance. In algebra: They let you do calculations with unknown values - either generic calculations, or do calculations to find such unknown values in a specific case.
it is a brute force way to find all the primes in a given range. Remove all the composites, and you are left with the primes
he wanted to find the circumference of the earth.
Eratosthenes' measurement of the Earth's circumference was remarkably accurate, coming within about 1% of the modern accepted value. This shows the impressive skill and accuracy of his calculations, especially considering the limited technology available to him at the time.
prime numbers
He thought that the Earth was round. And by doing a bit of basic geomtery he found out how big it was. He was RIGHT! His calculations were very accurate!
Eratosthenes was from ancient greek
By finding all the factors of the numbers and see which one is the biggest # they have in common. Or look at the Sieve of Eratosthenes table at google.com and there you will find the answer.or by looking at a sieve of Eratosthenes and crossing out the factors of each number and seeing which two factors are the same but the highest out of them both.
Eratosthenes, It says it is Eratosthenes.
The Sieve did not invent prime numbers. It was used to find them.
Yes, Eratosthenes had two sisters.
Eratosthenes lived between 276 and 194 B.C. He didn't discover prime numbers; he devised a simple way to determine what numbers are prime in a given range.
Eratosthenes, a greek philosopher, did, hence the name.
The sieve of Eratosthenes was discovered in 223 BC.