The book is now available! 1000000087
(just those submitted by Rivera)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

Just showing those entries submitted by 'Rivera': (Click here to show all)

+ 1000000087 remains prime after appending and inserting the digit X in all possible positions at the same time: X1X0X0X0X0X0X0X0X8X7X. This is valid for X=3 and for X=9, producing the following two primes 313030303030303038373 and 919090909090909098979. [Rivera]

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