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172 (another Prime Pages' Curiosity) |
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Single Curio View: (Seek other curios for this number) 172 =  (1+7+2) * prime(1*7*2). It is the only known number (up to 10^8) with this property. [Firoozbakht]
Submitted: 2004-10-09 10:09:40; Last Modified: 2009-05-01 19:53:48.
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