The book is now available! 31172165
(just those submitted by Kontobesar)
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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 'Kontobesar': (Click here to show all)

+ 10223*2^31172165 + 1 is a 9383761-digit proven prime . It is neither the largest known prime nor a self number. BUT, 10223*2^31172165 + 1 is the largest known prime P such that the repunit number ( 10^P - 1)/9 is a self number (!), as of July 4 , 2019. [Kontobesar]

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