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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) Just showing those entries submitted by 'Green': (Click here to show all) The digits of the prime 15559 appear as the final digits of the numbers in the sequence of centered tetrahedral numbers. The pattern 15559 repeats for each successive group of 5 consecutive numbers in the sequence. The first five numbers in the sequence are 1,5,15,35,69. (15559 is also the zip code of Schellsburg PA.) [Green]
(There is one curio for this number that has not yet been approved by an editor.)
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