3

This number is a prime.

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The terms of the sequence 3/2, (5 + 7)/(2 + 3), (7 + 11 + 13)/(2 + 3 + 5), (11 + 13 + 17 + 19)/(2 + 3 + 5 + 7), etc., converge to 3 as the primes used approach infinity.

Submitted: 2007-10-14 14:45:32; Last Modified: 2013-07-10 20:54:57.