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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) The only known multidigit Mersenne prime exponent that starts and ends with the same composite digit. [Luhn] 2^{9689}  1 is the largest (as of August 2002) known Mersenne prime with a prime number of digits (2917). [Rupinski] The sequence of digits '9689' appears exactly once in the Mersenne prime 2^9689  1. [Harrison]
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