The book is now available! 14
(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)

+ 14 = pi(1*4) * prime(1*4). Note that 14 is the smallest number with this property. [Firoozbakht]

+ 1!*2!*3!*4!*5!*6!*7!*8!*9!*10!*11!*12!*13!*14! + prime(14) is prime. [Firoozbakht]

+ 14 = prime(1*4) + sigma(1*4). [Firoozbakht]

+ Prime(14)^14 - pi(14) is prime. It is curious that the digits of 14 have the same property. [Firoozbakht]

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