Difference between revisions of "2024 IMO Problems/Problem 2"

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<cmath>\gcd (a^n+b,b^n+a)=g</cmath>
 
<cmath>\gcd (a^n+b,b^n+a)=g</cmath>
 
holds for all integer <math>n\ge N</math>.
 
holds for all integer <math>n\ge N</math>.
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==Video Solution==
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https://www.youtube.com/watch?v=VXFG1t_ksfI (including motivation to derive solution)

Revision as of 09:24, 17 July 2024

Find all positive integer pairs $(a,b),$ such that there exists positive integer $g,N,$ \[\gcd (a^n+b,b^n+a)=g\] holds for all integer $n\ge N$.

Video Solution

https://www.youtube.com/watch?v=VXFG1t_ksfI (including motivation to derive solution)