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4311 (another Prime Pages' Curiosity) |
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Single Curio View: (Seek other curios for this number) The largest known number n such that n - 2k, with n > 2k, is semiprime for all k > 0. [Capelle]
Submitted: 2009-09-01 06:06:30; Last Modified: 2009-09-01 19:56:34.
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