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This number is a composite.
Single Curio View: (Seek other curios for this number)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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