3

This number is a prime.

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The largely self-taught Indian genius Srinivasa Ramanujan (1887-1920) proposed that sqrt(1 + sqrt(1 + 2*sqrt(1 + 3*sqrt(1 + 4*sqrt(1 + ...))))) = 3.

Submitted: 2002-02-14 21:54:39; Last Modified: 2008-07-30 21:23:55.