3358

This number is a composite.

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+ The sum of the squares of the first repunit prime (11) number of primes: 2^2 + 3^2 + 5^2 + 7^2 + 11^2 + 13^2 + 17^2 + 19^2 + 23^2 + 29^2 + 31^2 = 3358 = 2 * 23 * 73. [Post]

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