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Three Digit Travail (Posted on 2014-12-26) Difficulty: 3 of 5
Let us consider a duodecimal prime number which when re-interpreted as a base ten positive integer is a composite number. As an example, (45)12 is equal to (53)10 and therefore a prime number. However, (45)10 is evidently a composite number.

Determine the probability an integer chosen at random from (100)12 to (BBB)12 inclusively is a prime number in the duodecimal system, but is composite when re-interpreted as a base ten number.

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
Solutioncomputer solutionCharlie2014-12-26 14:58:12
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