> The prime numbers are those that have been intersected by only two curves: the... | Hacker News

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floatrock on July 7, 2015 | parent | context | favorite | on: Prime Number Patterns

> The prime numbers are those that have been intersected by only two curves: the prime number itself and one.

This is merely a prettier but somewhat obfuscated Sieve of Eratosthenes: https://en.wikipedia.org/wiki/Sieve_of_Eratosthenes

panic on July 7, 2015 | [–]

It's a richer visualization than that. The Sieve of Eratosthenes only marks which numbers are composite -- this visualization actually shows each of the factors.

stillbourne on July 8, 2015 | | [–]

http://www.wolframalpha.com/input/?i=1%2F2++%286+n-cos%28pi+...

bgilroy26 on July 7, 2015 | [–]

"Merely" is a word that makes me imagine what might have been if only.

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