Power Of $2$
Posted: Tue Feb 20, 2018 4:39 pm
Does there exist a natural number $N$ which is a power of $2$ ,such that one can permutate its decimal digits to obtain a different power of $2$ ?
Think about the size of $2^k$ and $2^{k+4}$ for,$k=1,2,3,...$
NO
17th Iranian Math Olympiad
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Screenshot_2018-02-20-16-35-44-1.png
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