This number is a prime.
Single Curio View: (Seek other curios for this number)The smallest prime of form a666b666b666a where a, b distinct digits and b different from 6, (case a=7, b=4). [Loungrides]
Submitted: 2010-10-15 01:20:56; Last Modified: 2018-04-03 08:10:52.
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