This number is a prime.
Single Curio View: (Seek other curios for this number)The smallest Honaker prime of the form a^2+1. Note that it is also a Sophie Germain prime and the smaller of a twin prime pair. A Honaker emirp of the form a^2+1 that is simultaneously a Sophie Germain prime and the smaller of a twin prime pair has yet to be found. [Sariyar]
Submitted: 2020-06-30 12:57:49; Last Modified: 2020-06-30 13:32:55.
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