The book is now available! 946
(another Prime Pages' Curiosity)
Prime Curios!
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Participate: 		+ 946 is the only three-digit number m such that the reversal of concatenation of the first m natural numbers is prime. [Firoozbakht]

+ The largest known number n such that n is the sum of two consecutive primes but not the sum of two sums of two consecutive primes. [Capelle]

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