A Pythagorean triple consists of three positive integers a, b, and c, such that a2 + b2 = c2. Such a triple is commonly written (a, b, c), and a well-known example is (3, 4, 5). If (a, b, c) is a Pythagorean triple, then so is (ka, kb, kc) for any positive integer k.
A "Pythagorean Triple" is a set of positive integers, a, b and c that fits the rule: ... When a triangle's sides are a Pythagorean Triple it is a right angled triangle.