This number is a composite.
Single Curio View: (Seek other curios for this number)243 is the first number of the form pq where p & q are a prime pair (i.e., where p & q are prime and q = p + 2). [Hunter]
Submitted: 2002-10-25 08:49:43; Last Modified: 2008-01-30 11:28:00.
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