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639 (another Prime Pages' Curiosity) |
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Single Curio View: (Seek other curios for this number) The smallest number that can be expressed as the sum of the k first prime numbers for some k, and congruent with 3 modulus 4. [Rodrigo]
Submitted: 2004-10-18 14:07:35; Last Modified: 2008-01-30 11:28:00.
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