Man, I wish I'd known this when I did high-school math competitions...

[sylvar]

Weisstein, Eric W. "Pythagorean Triple." From MathWorld--A Wolfram Web Resource. http://mathworld.wolfram.com/PythagoreanTriple.html

Aren't those COOL?!

Comments

[sylvar.livejournal.com]

The radius of a circle inscribed in a right triangle whose sides have integer length.

[pappy74.livejournal.com]

I didn't get very far... I don't follow their examples here...

"In addition, one side of every Pythagorean triple is divisible by 3, another by 4, and another by 5. One side may have two of these divisors, as in (8, 15, 17), (7, 24, 25), and (20, 21, 29), or even all three, as in (11, 60, 61)."

Oh! Never mind. One side can 'eat up' all the divisors is what they are saying. Nifty.