31

This number is a prime.

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31 is the largest primorial prime less than the next prime squared, i.e., 5# + 1 = (2*3*5) + 1 = 31 < 72 = 49. [Nicholson]

Submitted: 2001-11-05 23:17:15;   Last Modified: 2008-01-30 11:28:00.
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