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This tag is for questions about divisibility, that is, determining when one thing is a multiple of another thing.

4 votes
3 answers
507 views

Some Pythagorean triples proofs

I'm studying about number theory by myself. So I'm sorry if the question seems to be unclear. I just want to know how to prove that one member of a Pythagorean triple is always divisible by 5 and tha …
Ahmed Amir's user avatar
  • 1,023
0 votes

Some Pythagorean triples proofs

As I said, I haven't learned about "modular arithmetic" yet. That's may be why I'm not getting your answers which seem to be obviously clear. Despite this, I tried to prove it on my "Elementary" way …
Ahmed Amir's user avatar
  • 1,023