13216141

This number is a composite.

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The smallest strong pseudoprime (base 2) which is the product of two strong pseudoprimes (base 2), i.e., 13216141 = 3277*4033, where 13216141, 3277, and 4033 are all strong pseudoprimes (base 2). [Gupta]

Submitted: 2003-08-02 17:04:19;   Last Modified: 2008-01-30 17:28:00.
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