The book is now available! 61670
(another Prime Pages' Curiosity)
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+ 61670 = prime(6!-6+6!2) + prime(1!-1+1!2) + prime(6!-6+6!2)+ prime(7!-7+7!2) + prime(0!-0+0!2). Note that 61670 is the only number with this property. [Firoozbakht]




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