The book is now available! 94
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ Add the prime factors of 94 and the result is 94 reversed. [Sladcik]

+ 94 is the smallest k such that 260 + 1 - k is prime. [Russo]

+ 94 equals the sum 2 + 3 + 4 + ... + 16 minus the sum of primes less than 16. [Sladcik]

+ The smallest number k in which all the digits of k and kth prime are perfect squares. [Wu]

+ 94 is the smallest even number greater than four which cannot be written as a sum of two twin primes. [Capelle]

+ (94!/49!)+1 is prime. [Patterson]

+ 94 is the largest sequence (981270903-981270996) of consecutive non-semiprimes up to 10^9. [Luhn]

+ The largest two-digit number n such that n!-1 is prime. [Gallardo]

+ The smallest emirpimes which, when concatenated with its digital reversal, gives a semiprime (a palindromatic semiprime): 9449 = 11 * 859. [Post]

+ The last two-digit number to be the difference between two consecutive prime numbers (1100977 and 1101071). All other even two-digit numbers are the difference between two smaller consecutive primes. [Gaydos]

(There are 3 curios for this number that have not yet been approved by an editor.)

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