The book is now available! 97
(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)

+ 97 = pi(pi(9)^pi(9) + pi(7)^pi(7)). Note that the prime 97 is the only integer with this property. [Firoozbakht]

+ The smallest emirp p such that the reversal of all the five numbers 2^k*p, k < 6 are prime. [Firoozbakht]

(There is one curio for this number that has not yet been approved by an editor.)




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