The book is now available! 12255...55221 (49-digits)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

                       122555553 3366666677 7777767777 7776666663 3355555221
+ The smallest square-congruent prime of order 7 consisting of six positive digits d, i.e., (1, 2, 3, 5, 6, 7), 2*d times each of them and an extra digit in the middle. [Loungrides]




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