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Powers of 3 (
Posted on 20160825
)
Find powers of 3 which can be written as the sum of the k
_{th}
powers (k > 1) of two coprime integers.
No Solution Yet
Submitted by
Ady TZIDON
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The only actual solution so far
 Comment 4 of 5 
It occurs to me that in my previous post I overlooked a legitimate solution:
3^2 = 1^3 + 2^3
The second power of 2 is the sum of k=3rd powers of 1 and 2, which are coprime.
Posted by
Jer
on 20160826 10:17:40
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