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40 (another Prime Pages' Curiosity) |
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Single Curio View: (Seek other curios for this number) The expression P(n) = n^2 + n + 41 is prime for all natural numbers n < 40. It is composite for n = 40. [Mitchell]
Submitted: 2002-06-16 01:14:40; Last Modified: 2008-01-30 11:28:00.
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