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Participate: 		+ The sum of the first 7*6+9+9 primes. [Nilsson]

+ The prime number formed from the first four nonzero digits of the sum of the series (1/16 + 1/81 + 1/625 + 1/2401), i.e., the sum of the reciprocals of the fourth powers of the primes.

+ The smallest number that can be expressed as the sum of the k first primes for some k, congruent with 3 modulus 4, and prime. [Rodrigo]

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