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Describing 19972667609 and repeating the process with each new term produces six more primes, i.e., one 1, two 9's, one 7, one 2, two 6's, one 7, one 6, one 0, one 9, generates 112917122617161019, etc. This record-breaking sequence was discovered by Walter Schneider in September 2001. (A prime producing seven more primes is predicted to first occur around 1013.)

 

  Submitted: 2004-01-02 22:06:32;   Last Modified: 2014-08-09 14:16:11.



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