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Power GCD (Posted on 2025-05-09) Difficulty: 3 of 5
For any natural number a, show that gcd(a3+1, a7+1)=a+1.

No Solution Yet Submitted by Danish Ahmed Khan    
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  Subject Author Date
I think this does it tooLarry2025-05-09 12:25:53
Possible Solutionbroll2025-05-09 11:51:33
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