The book is now available! 142
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

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142 is the smallest semiprime whose sum of divisors is a cube. [Gupta]

 

  Submitted: 2001-08-31 01:20:20;   Last Modified: 2019-01-08 08:55:01.



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