This number is a composite.

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The smallest happy number n strong pseudoprime to base 2, that is sum of three consecutive primes (84191 + 84199 + 84211). Curiously, n is also expressible as the sum of two squares in four ways. [Bajpai]

Submitted: 2019-07-06 12:45:39;   Last Modified: 2020-06-15 16:29:06.
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