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Old 2021-02-13, 12:59   #1
chao wu
 
Feb 2021

12 Posts
Default Solve phi(m^n+n)=2^n over positive integers?

How to solve phi(m^n+n)=2^n over positive integers? Where both m and n are positive integers, and phi denotes the Euler function. We can find that (m,n)=(2,1), (3,1) or (5,1) are some examples of solutions. Can someone give me any hints for this problem?

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Last fiddled with by Dr Sardonicus on 2021-02-13 at 14:21 Reason: As indicated
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