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56 (another Prime Pages' Curiosity) |
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Single Curio View: (Seek other curios for this number) prime(56) = prime(5)*prime(6)+sigma(56). 56 is the only known number (up to 3*10^8) with this property. [Firoozbakht]
Submitted: 2009-05-10 06:20:41; Last Modified: 2009-05-10 11:21:13.
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