This number is a composite.
Single Curio View: (Seek other curios for this number)The sum of digits ± 1 and the product ± 1 of 213 is prime. Note the sum of the digits is the same as the product. [Russo]
Submitted: 2001-05-23 00:48:43; Last Modified: 2008-01-30 17:28:00.
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