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Old 2021-05-25, 05:47   #5
paulunderwood
 
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Sep 2002
Database er0rr

2·3·54 Posts
Default New quest

With my observations about GCDs, I now have a new quest to fool:
Code:
tstab(n,a,b)=tst(n,a)&&tst(n,b)&&gcd(a^2-b^2,n)==1;
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