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Solution to ((2^n)+1)/(n^2)

by Davewilliams
Tags: 1 or n2, solution
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Davewilliams
#1
Apr3-14, 05:01 PM
P: 4
Find all positive integer answers for ((2^n)+1)/(n^2) where n is an integer greater then one.
The only answer i can find is three, i wrote a program to brute force it and have gotten up to n=32000 but as for going about solving it i have no clue.
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craigi
#2
Apr3-14, 05:20 PM
P: 420
Where did this question orginate?
Davewilliams
#3
Apr3-14, 05:25 PM
P: 4
A friend from school broght it in... I have no clue where he got it from though.

craigi
#4
Apr3-14, 05:25 PM
P: 420
Solution to ((2^n)+1)/(n^2)

Quote Quote by Davewilliams View Post
A friend from school broght it in... I have no clue where he got it from though.
Is it homework?
Davewilliams
#5
Apr3-14, 05:27 PM
P: 4
No, its just a problem we where trying to solve.


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