Well of course since the problem is not restricted, the smallest number is 3. I'm almost sure that's not what you mean. The next smallest number is 2775. I found that using a programing language. I'm sure as well that does not satisfy the question, either.
I think you are intended to do this by finding the lowest common multiple and adding 3.
1. To find the slope, we need to have the equation in slope-intercept form, which is . In this case, our equation is already in this form. is what your slope is. In this case, our
2. To find the y-intercept we look at value that is in . In this case, is . So, our ordered pair is .