1627

This number is a prime.

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The sum 2^(1/2)+3^(1/2)+5^(1/2)+...+43^(1/2)+47^(1/2) differs from the fraction 1627/(5^2) by less than 1/(2*10^5). Note that 1627 is prime. [Rupinski]

Submitted: 2003-02-26 21:51:43;   Last Modified: 2008-01-30 11:28:00.
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