Twin Primes Program Help

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Brendon
Brendon 2014-8-7
回答： Image Analyst 2014-8-8
I need help writing a program that finds all the twin primes between 10 and 500 without using a built in function.
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Geoff Hayes
Geoff Hayes 2014-8-8
Brendon - suppose you had a set of all numbers from 10 through to 500. Given the definition of a prime number, which of those numbers in this set can you (easily) eliminate first?
The even numbers or all those that are a multiple of two. What numbers could you try to eliminate next? Etc.
Brendon
Brendon 2014-8-8
Thanks for your help.

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Image Analyst
Image Analyst 2014-8-8
Take a look at http://en.wikipedia.org/wiki/Sieve_of_Eratosthenes. I'm sure someone must have coded this up in MATLAB and probably uploaded it to the File Exchange.

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