The book is now available! 413
(another Prime Pages' Curiosity)
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+ The number 413 is a semiprime, but (413 - 4)^4 + (413 - 1)^1 + (413 - 3)^3 is prime with prime length, and contains a prime number of prime digits in its decimal expansion. [Patterson]

(There is one curio for this number that has not yet been approved by an editor.)




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