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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

                                                              105 0100100501
+ The numbers in the 5th row of Pascal's Triangle concatenated together, but padded with 0's, is prime. It is also 'quasipalindromic' in the sense of a concatenating several multidigit numbers in reverse order, but not reversing the digits of those individual numbers. [Green]

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