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(another Prime Pages' Curiosity)
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825265 = 5 x 7 x 17 x 19 x 73 is the smallest Carmichael Number with 5 prime factors, each of which is composed entirely of odd digits. The sum of prime factors (SPF) is 5 + 7 + 17 + 19 + 73 = 121 = 11^2, a number with 2 prime factors, each of which is composed entirely of odd digits. [Carmichael]

 

  Submitted: 2004-11-14 12:48:01;   Last Modified: 2008-01-30 11:28:00.



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