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(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

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The number of distinct heptiamonds (i.e., triangular polyominoes with 7 cells), counted with reflections but not turning over. [Beedassy]


  Submitted: 2008-11-05 06:41:44;   Last Modified: 2008-11-05 17:16:30.

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