1. ## Tricky Tut Question

Let L(387) be the least residual set modulo 387. If we multiply L(378) by 12, is the resulting set a complete residual set?

Thanks..

I know the answer is yes, but have no idea why?

3. ## Re: Tricky Tut Question

What about 129? can you explain to me?

4. ## Re: Tricky Tut Question

Originally Posted by ikurwae89
What about 129? can you explain to me?
129 is in L(387).

129 * 12 = 4 * 387

5. ## Re: Tricky Tut Question

So a counterexample is the best to show that if another integer exist in L(387), then its not a complete residual set?

Is that what it means? If i got it all wrong can you explain to what the question is asking?

Thanks