The book is now available! 2657
(another Prime Pages' Curiosity)
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+ The American mathematician Lowell Schoenfeld (1920-2002) proved that if the Riemann hypothesis was true, then
for all x greater than or equal to 2657.

+ The smallest prime of form a^b+c^d, where the bases are prime and the exponents are composite digits, i.e., 2^8+7^4. Note that alternating the exponents we take the largest such prime, i.e., 2^4+7^8. [Loungrides]

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




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