Co-prime of vectors

phynewb

Thanks Norwegian!
I think you are almost right. But (4,-3) and (3,-4) are coprime but with det=7 will be a counter example. If we consider higher dimensions, are (2,-1,2,-1) and (-4,1,4,-1) co-prime? Do you know how to show it rigorously?

phynewb	Thanks Norwegian! I think you are almost right. But (4,-3) and (3,-4) are coprime but with det=7 will be a counter example. If we consider higher dimensions, are (2,-1,2,-1) and (-4,1,4,-1) co-prime? Do you know how to show it rigorously?