This number is a composite.
7^2 + 11^2 + 29^2 = 11^2 + 19^2 + 23^2 = 1011. Is this the smallest prime that is the sum of three primes squared? Is there a smaller one with six distinct primes squared? [Bergot]
(There are 2 curios for this number that have not yet been approved by an editor.)
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