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7 in row (Posted on 2018-08-05) Difficulty: 4 of 5
Find a sequence of 7 consecutive primes, creating an arithmetic progression.

There are several solutions, all are big numbers.

No Solution Yet Submitted by Ady TZIDON    
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The first prime is Q1 = 1089533431247059310875780378922957732908036492993138195385213105− 561742150447308967213141717486151 and the common difference is 210.  It was found in 1997.

Here you can find technical details about the search.


  Posted by xdog on 2018-08-06 09:19:21
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