Hi Bunuel,

I understood your approach for this problem. However , would like to have your opinion why the below solution as given in the older post is wrong?

so (p^2 - n^2)/15 = (p+n)/5 * (p-n)/3...

so remainder will be equal to 1*1 = 1

Please advise as to what was wrong in this solution in detail.

Rgds,

TGC!

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Rgds,

TGC!

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I Assisted You => KUDOS Please

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