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Topic: Prime Digit Sums
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Hauke Reddmann

Posts: 545
Registered: 12/13/04
Prime Digit Sums
Posted: May 28, 2013 12:20 PM
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{i,1,10000}]//Union//Length},{k, 2, 100}]]

It counts the numbers whose (noniterated) digitsum (base k) is prime.
I limited the numbers to <10000 to get a result in decent time.
The values are extremely high - even base 100 over 2000 numbers
qualify. Insert joke about drowning number theoretican? :-)

What would you expect as O(k)?
Hauke Reddmann <:-EX8
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