Find LCM of 2 numbers without using GCD

[Albert Chan]

uh, did it miss a subtract on line 3 ? looks like Y pushed away

when X and Y are both negative, the mod will stay negative all the way to the end

I still like the mod, and would like program to pull double duty.
How about it only does the loop only if X was negative ?

so, this will get the gcd

54321 CHS Enter 12345 CHS R/S --> -3

that will be awesome ...

Edit: my mistake, it was CLX not LstX. That was a nice trick ...