The book is now available! 4920
(another Prime Pages' Curiosity)
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4920 is the smallest number that may be expressed as the difference between the squares of consecutive primes in four different ways (12312 - 12292 = 6172 - 6132 = 2512 - 2412 = 2112 - 1992). [King]

 

  Submitted: 2003-07-25 09:58:31;   Last Modified: 2008-01-30 11:28:00.



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