3086791

This number is a prime.

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The smallest prime (emirp) that is the sum of the first n centered hexagonal numbers (1^3+7^3+19^3+37^3+61^3+91^3+127^3). [Bajpai]

Submitted: 2016-08-18 20:07:59; Last Modified: 2016-08-18 20:35:06.