83

This number is a prime.

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The German mental calculator Rüdiger Gamm (1971- ) once demonstrated his ability on an Australian radio show by calculating consecutive powers of 83 in his head without making a mistake. The number 83 had been selected for him randomly.

Submitted: 2008-01-11 04:15:06; Last Modified: 2014-05-07 01:29:07.