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- Thu Dec 09, 2010 6:39 pm
- Forum: Number Theory
- Topic: Find the number of x
- Replies: 8
- Views: 6112
Find the number of x
Find the number of solution of the equation $2^x=4^y=8^z$ where $x$, $y$ and $z$ are positive integers, $x$ is less than $10000$ and for every $x$ satisfying the equation, sum of digits of $x$ also belongs to the solution set of $x$