Bryce Herdt: I recently found a triangular number with the property that its digits can be broken down into the sides of a Pythagorean right triangle. I'm wondering if there are more like it. [Ed - The first is a lovely find. Are there more?] ---------------------------------------- 3^2+4^2=5^2 => 435 51^2+68^2=85^2 => 688551 310^2+744^2=806^2 => 744806310 1260^2+7296^2=7404^2 => 126074047296 5265^2+7020^2=8775^2 => 702052658775 Dr. Luke Pebody ---------------------------------------- There ain't no more with short leg of right triangle < 1 million, no matter the position of the hypotenuse. ............................................................................ next one: 5265-7020-8775 : 702052658775 There's 3 in between with hypotenuse in middle: 51-68-85 : 688551 310-744-806 : 744806310 1260-7296-7404 : 126074047296 ............................................................................ so 435 is Herdt's, right? Denis Borris