Prime Curios!: 11

11
(another Prime Pages' Curiosity)

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The only number in base ten that is not Nivenmorphic ; In other words, 11 never divides a number ending in 11 if its sum of digits is also equal to 11. [Boscaro and Beedassy]

Submitted: 2001-07-31 05:53:48; Last Modified: 2009-09-26 08:28:08.