Mathematical Notes
- Mathematical Notes / Volume 3 / December 1909, pp 21-22
- Copyright © Edinburgh Mathematical Society 1909
- DOI: http://dx.doi.org/10.1017/S1757748900000499 (About DOI), Published online: 31 October 2008
Research Article
On the Equation
Lawrence Crawford
c2 = a2+b2.—If c2 = a2 + b2 and a, b, c have no common factor, then c exceeds a or b by an odd square.
No two of a, b, c must have common factor, or all three would.
