The book is now available! 431729
(just those submitted by Firoozbakht)
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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 'Firoozbakht': (Click here to show all)

+ 431729 = prime((4*3*1*7*2*9)*(4+3+1+7+2+9)) - (4*3*1*7*2*9) *(4+3+1+7+2+9)). Note that 431729 is the smallest prime with this property. [Firoozbakht]




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