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sylvar November 18 2006, 05:15:04 UTC
The radius of a circle inscribed in a right triangle whose sides have integer length.

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pappy74 November 18 2006, 05:59:09 UTC
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.

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