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: 2001-11-06 05:17:15; Last Modified: 2008-01-30 17:28:00.
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