1111111111111

This number is a composite.

                                                              111 1111111111

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            1
         1 1 1 1
          1 1 1
         1 1 1 1
            1

A star-congruent prime of order 2 in bases 2 and 5. [Dobb]

Submitted: 2003-02-12 05:47:39;   Last Modified: 2008-01-30 17:28:00.
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