The book is now available! 67661
(another Prime Pages' Curiosity)
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+ 67661 = prime(6!+6!2) + prime(7!+7!2) + prime(6!+6!2) + prime(6!+6!2) + prime(1!+1!2). Note that 67661 is the only number with this property. [Firoozbakht]

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