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(Created page with "'''Twin primes '''are numbers wherein two numbers have a gap of two. ==Examples== 3 and 5 are twin primes 5 and 7 are twin primes 11 and 13 are twin primes, et al. ==Large...")
 
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'''Twin primes '''are numbers wherein two numbers have a gap of two.
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'''Twin primes '''are numbers wherein two numbers have a gap of two. According to Wikipedia, there are 808,675,888,577,436 twin prime pairs below 10^18, or 1 quintillion. Can you find all of those?
   
 
==Examples==
 
==Examples==
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==Largest known twin prime==
 
==Largest known twin prime==
3756801695685 · 2^666669 ± 1. Those are a lot of digits!
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3756801695685 · 2^666669 ± 1.

Revision as of 02:44, March 9, 2014

Twin primes are numbers wherein two numbers have a gap of two. According to Wikipedia, there are 808,675,888,577,436 twin prime pairs below 10^18, or 1 quintillion. Can you find all of those?

Examples

3 and 5 are twin primes

5 and 7 are twin primes

11 and 13 are twin primes, et al.

Largest known twin prime

3756801695685 · 2^666669 ± 1.

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