31111...11113 (31-digits)

This number is a prime.

                                          3 1111111111 1111111111 1111111113

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The fourth prime of the form 311...113. Note the number of digits (31). [Beisel]

Submitted: 2002-01-31 16:33:35;   Last Modified: 2008-01-30 11:28:00.
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