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Prime triplets are sequences of 3 prime numbers less than 10 apart that end in {1, 5, 7}, {5, 7, E}, {7, E, 1}, or {E, 1, 5}.

90% of prime triplets contain a transdecimal digit, and most of the time, that digit is E.

The first prime triplets are:

{5, 7, E}, {7, E, 11}, {E, 11, 15}, {11, 15, 17}, {15, 17, 1E}, {31, 35, 37}, {35, 37, 3E}, {57, 5E, 61}

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