743404663

This number is a composite.

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The first Carmichael number of the form 4n-1 not to end in a 1. Note that it is the 561st Carmichael number and 561 is the first. [Homewood]

Submitted: 2019-06-25 15:39:33;   Last Modified: 2019-06-25 16:31:29.
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