85211549
This number is a prime.
Just showing those entries submitted by 'Bajpai': (Click here to show all)
The smallest Honaker prime P that is the sum of the squares
of first n Sophie Germain primes, i.e., (2^2 + 3^2 + 5^2 +
11^2 +...+ 2129^2 + 2141^2), (case n=66). Curiously, P is
also expressible as the sum of two squares (7157^2 +
5830^2). [Bajpai]
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