The book is now available! 28
(another Prime Pages' Curiosity)
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28 is a perfect number expressible as the sum of first five prime numbers, i.e., 2 + 3 + 5 + 7 + 11 = 28. [Gupta]

 

  Submitted: 2001-09-13 23:04:23;   Last Modified: 2015-04-26 16:48:10.



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