- #1
Ackbach
Gold Member
MHB
- 4,155
- 92
Here is this week's POTW:
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Twin primes are primes that differ by 2. Find the fraction of the primes up to ten million that are twin primes. For example, 3 and 5 are twin primes, as well as 5 and 7, and all the primes less than 10 are 2, 3, 5, and 7. Hence the fraction of twin primes in the interval [1,10] is 3/4.
Does your answer give you any sort of hunch about the number of twin primes? (The Twin Primes Conjecture is one of the great unsolved problems in Number Theory.)
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Remember to read the http://www.mathhelpboards.com/showthread.php?772-Problem-of-the-Week-%28POTW%29-Procedure-and-Guidelines to find out how to http://www.mathhelpboards.com/forms.php?do=form&fid=2!
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Twin primes are primes that differ by 2. Find the fraction of the primes up to ten million that are twin primes. For example, 3 and 5 are twin primes, as well as 5 and 7, and all the primes less than 10 are 2, 3, 5, and 7. Hence the fraction of twin primes in the interval [1,10] is 3/4.
Does your answer give you any sort of hunch about the number of twin primes? (The Twin Primes Conjecture is one of the great unsolved problems in Number Theory.)
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Remember to read the http://www.mathhelpboards.com/showthread.php?772-Problem-of-the-Week-%28POTW%29-Procedure-and-Guidelines to find out how to http://www.mathhelpboards.com/forms.php?do=form&fid=2!