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#11 jim

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Posted 29 August 2012 - 05:03 PM

Comments. The smallest number does require a lot of messy testing. But the largest number is another matter. As noted above, we can do 256. There are also two larger numbers we can also do. What are they?
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#12 BobbyGo

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Posted 29 August 2012 - 08:12 PM

Comments. The smallest number does require a lot of messy testing. But the largest number is another matter. As noted above, we can do 256. There are also two larger numbers we can also do. What are they?


Spoiler for 3 bigger than 256

Edited by BobbyGo, 29 August 2012 - 08:18 PM.

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#13 jim

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Posted 30 August 2012 - 02:51 AM

Bobby Go . Nice answer. I missed 270. There is a general method to find the largest such number with 3n-1, 3n, or 3n+1 as the number of ones--where n= m+1. It is easiest for 3n.
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