Question 1169572
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Regarding first part of your problem, let me say, that


any person who knows the multiplication table, can do it on his or her own.


There is no need to ask for help from outside for such simple assignment.



Regarding the second part of your problem, read about Pythagorean triples from this Wikipedia article


https://en.wikipedia.org/wiki/Pythagorean_triple#:~:text=A%20Pythagorean%20triple%20consists%20of,%2B%20b2%20%3D%20c2.&text=If%20(a%2C%20b%2C%20c,common%20divisor%20larger%20than%201).


Read from there as much or as few as you want.



It is a good reading (!)