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281 (another Prime Pages' Curiosity) |
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Single Curio View: (Seek other curios for this number) 281!/281# ± 1 are twin primes. Note that 281 is a prime of form n!3 + 1. [Luhn]
Submitted: 2001-12-30 10:01:43; Last Modified: 2008-01-30 11:28:00.
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